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  <xsd:element abstract="true" id="trs_EquityOfferingAbstract" name="EquityOfferingAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_EquityOfferingTextBlock" name="EquityOfferingTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_EstimatedTimeuntilPrimaryInsuranceisExhausted" name="EstimatedTimeuntilPrimaryInsuranceisExhausted" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_FacilityClosingGoshenMember" name="FacilityClosingGoshenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_FacilityClosingSaoPauloBrazilMember" name="FacilityClosingSaoPauloBrazilMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_FinalprincipalpaymentJune302020Member" name="FinalprincipalpaymentJune302020Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_FiniteLivedIntangibleAssetsByUsefulLifeAxis" name="FiniteLivedIntangibleAssetsByUsefulLifeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_FiniteLivedIntangibleAssetsByUsefulLifeDomain" name="FiniteLivedIntangibleAssetsByUsefulLifeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_IncomelossfromdiscontinuedoperationsnetoftaxMember" name="IncomelossfromdiscontinuedoperationsnetoftaxMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_IncrementalDebtCommitmentsCapacity" name="IncrementalDebtCommitmentsCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="trs_IntangibleAssetsExcludingGoodwillLineItems" name="IntangibleAssetsExcludingGoodwillLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_LetterOfCreditMaximumBorrowingCapacity" name="LetterOfCreditMaximumBorrowingCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="trs_LongTermDebtFairValueOfParValue" name="LongTermDebtFairValueOfParValue" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="trs_LossContingencyClaimsDismissedDuringPeriodNumberOfPlaintiffs" name="LossContingencyClaimsDismissedDuringPeriodNumberOfPlaintiffs" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_LossContingencyClaimsSettledDuringPeriodNumberOfPlaintiffs" name="LossContingencyClaimsSettledDuringPeriodNumberOfPlaintiffs" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_LossContingencyNumberofPlaintiffsSpecifyingDamagesSought" name="LossContingencyNumberofPlaintiffsSpecifyingDamagesSought" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="trs_LossContingencySettlementAgreementAverageConsideration" name="LossContingencySettlementAgreementAverageConsideration" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_MetricTypeAxis" name="MetricTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_MetricTypeDomain" name="MetricTypeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_NIIndustriesbusinessMember" name="NIIndustriesbusinessMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_NetLeverageRatio" name="NetLeverageRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant" />
  <xsd:element id="trs_NumberOfPendingClaimsAtBeginningOfPeriod" name="NumberOfPendingClaimsAtBeginningOfPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_NumberofHorizonSharesReceivedinSpinoff" name="NumberofHorizonSharesReceivedinSpinoff" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="trs_OtherComprehensiveIncomeAbstract" name="OtherComprehensiveIncomeAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_OtherComprehensiveIncomeLossNetUnrealizedGainsLossesArisingDuringPeriodNetOfTax" name="OtherComprehensiveIncomeLossNetUnrealizedGainsLossesArisingDuringPeriodNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="trs_OtherComprehensiveIncomeNetRealizedGainsLossesToNetIncome" name="OtherComprehensiveIncomeNetRealizedGainsLossesToNetIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_OverdraftFacilityMember" name="OverdraftFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_PackagingReportableSegmentMember" name="PackagingReportableSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_PercentageOfSettlementAndDefenseCostsCoveredByInsurance" name="PercentageOfSettlementAndDefenseCostsCoveredByInsurance" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_PerformanceBasedRestricedSharesMember" name="PerformanceBasedRestricedSharesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_Plan1Member" name="Plan1Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_Plan2Member" name="Plan2Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_Plan3Member" name="Plan3Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_Plan4Member" name="Plan4Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_Plan5Member" name="Plan5Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_Plan6Member" name="Plan6Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_Plan7Member" name="Plan7Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_Plan8Member" name="Plan8Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_PresentationofspinoffcostsAxis" name="PresentationofspinoffcostsAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_PresentationofspinoffcostsLineItems" name="PresentationofspinoffcostsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_PrincipalPaymentScheduleAxis" name="PrincipalPaymentScheduleAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_PrincipalPaymentScheduleDomain" name="PrincipalPaymentScheduleDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_PrincipalpaymentquarterlyDecember2015throughSeptember2018Member" name="PrincipalpaymentquarterlyDecember2015throughSeptember2018Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_PrincipalpaymentquarterlyDecember2018throughMarch2020Member" name="PrincipalpaymentquarterlyDecember2018throughMarch2020Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_PunitiveOnlyDamagesMember" name="PunitiveOnlyDamagesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_Range1Member" name="Range1Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_Range2Member" name="Range2Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_Range3Member" name="Range3Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_ReceivablesFacililtyDebtAggregateCosts" name="ReceivablesFacililtyDebtAggregateCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_ReceivablesFacilityandotherMemberMember" name="ReceivablesFacilityandotherMemberMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_RequiredprepaymentsundertermloanAfacility" name="RequiredprepaymentsundertermloanAfacility" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_RevolvingCreditAndTermLoanFacilitiesMember" name="RevolvingCreditAndTermLoanFacilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_SaleofBusinessItalyMember" name="SaleofBusinessItalyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_ScheduleOfAmortizationOfIntangibleAssetsTable" name="ScheduleOfAmortizationOfIntangibleAssetsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_ScheduleOfDamagesSoughtForSpecificClaimsTableTextBlock" name="ScheduleOfDamagesSoughtForSpecificClaimsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_ScheduleOfDebtInstrumentsTable" name="ScheduleOfDebtInstrumentsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_ScheduleOfDepreciationExpenseTable" name="ScheduleOfDepreciationExpenseTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_ScheduleOfFiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock" name="ScheduleOfFiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_ScheduleOfIntangibleAssetsExcludingGoodwillByMajorClassTable" name="ScheduleOfIntangibleAssetsExcludingGoodwillByMajorClassTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_ScheduleOfIntangibleAssetsExcludingGoodwillByMajorClassTableTextBlock" name="ScheduleOfIntangibleAssetsExcludingGoodwillByMajorClassTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_SecuredDebtMaximumBorrowingCapacity" name="SecuredDebtMaximumBorrowingCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="trs_SeniorSecuredTermLoanMember" name="SeniorSecuredTermLoanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_ServiceBasedRestricedSharesMember" name="ServiceBasedRestricedSharesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAmountOfSharesEarnedOfTargetAward" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAmountOfSharesEarnedOfTargetAward" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPercentageAttained" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPercentageAttained" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPercentageEarnedBasedOnMetricOverPerformancePeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPercentageEarnedBasedOnMetricOverPerformancePeriod" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardCashValueOfIncentivePlan" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardCashValueOfIncentivePlan" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardIncentiveCompensationPlanThresholdTargetAwardForGrantingStockAward" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardIncentiveCompensationPlanThresholdTargetAwardForGrantingStockAward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPerformanceMetricsInRestrictedSharesAwardTypePlan" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPerformanceMetricsInRestrictedSharesAwardTypePlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestricedSharesValueOfIncentivePlan" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardRestricedSharesValueOfIncentivePlan" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsSpinoffAdjustment" name="SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsSpinoffAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_SharebasedCompensationArrangementbySharebasedPaymentAwardOtherThanOptionsSpinoffAdjustment" name="SharebasedCompensationArrangementbySharebasedPaymentAwardOtherThanOptionsSpinoffAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_SharebasedCompensationArrangementbySharebasedPaymentAwardPerformancePeriodComplete" name="SharebasedCompensationArrangementbySharebasedPaymentAwardPerformancePeriodComplete" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="trs_StatementOfComprehensiveIncomeAbstract" name="StatementOfComprehensiveIncomeAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_StockOptionsVested" name="StockOptionsVested" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_TermloanAfacilityMember" name="TermloanAfacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_TotalshareholderreturnmetricMember" name="TotalshareholderreturnmetricMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="trs_TriMasNumberofCommonSharesHeld" name="TriMasNumberofCommonSharesHeld" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="trs_TriMasstockpricedecline" name="TriMasstockpricedecline" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_USBankDebtAndReceivablesFacilityMember" name="USBankDebtAndReceivablesFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_UsefulLifeFifteenToTwentyfiveYearsMember" name="UsefulLifeFifteenToTwentyfiveYearsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_UsefulLifeFiveToTwelveYearsMember" name="UsefulLifeFiveToTwelveYearsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_UsefulLifeOneToFifteenYearsMember" name="UsefulLifeOneToFifteenYearsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="trs_UsefulLifeSeventeenToThirtyYearsMember" name="UsefulLifeSeventeenToThirtyYearsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
