1ISO 8752ASME B18.8.2ASME B18.8.4MSLOTTED SPRING PINS2SLOTTED SPRING PINSISO/TS 16949:2009 and ISO 9001:2008 certifcations are your guarantee for consistent quality. Contract Review / Quality Planning.A formal procedure exists for the specifcation and acceptance of new orders by sales, manufacturing and quality. Document / Drawing Control.All drawings, standards and specifcations are controlled through engineering.SQAApprovalofSuppliersandSubcontractorsis maintainedbysuppliersystemauditsandmonitoringof supplier quality performance. SystemAuditsarecarriedoutregularlybyindependent auditorswithwrittenreportssubmittedformanagement action.Calibration and Gauge Control.All gauges are calibrated on a regular basis, traceable back to national standards.The control records are computerized. All parts are traceable through each manufacturing process andheattreatmentbacktotheoriginalrawmaterialtest certifcate.Each lot has a unique identifcation number on the packaging which should be retained by the customer and quoted in the event of any inquiry.Manufacturing Controls.There is clear identifcation of job and quality status with controlled routings.Capability studies are used to verify machine and process capability; statistical process control is used for all processes, using variable and attribute data; and there are fnal audit checks of completed parts and stock. Non-Conforming Parts.These are segregated with a hold labelandquarantinedpendingadecisionondisposal. An automatedcorrectiveactionsystemensuresmanagement controlforquickandaccurateresponsestocustomer inquiries.SPIROL Slotted Spring Pins manufactured toISO 8752 (EN 28752), ASME 18.8.4M Type B (Metric), and ASME B18.8.2 (Inch) are available from stock. DIN 1481 is interchangeable with ISO 8752 (EN 28752) except for a variation in length tolerance. The ASME B18.8.2 range meets the requirements of most pins per NASM 10971 (formerly MIL-P-10971), NASM 16562 (formerly 16562), NAS 561, SAE J496, and SAE AS7207 (Superseded AMS 7207 and MS171401-MS171900). ISO 13337 (DIN 7346), lightweight Slotted Pins, are available made-to-order for volume applications.PART DESCRIPTIONSLTP 4 X 10 BK ISO 8752StandardFinishMaterialLengthDiameterPin Type (Slotted)MATERIALS*High Carbon SteelAISI 1070, ISO C67SMartensitic (Chrome) Stainless SteelAISI 420, ISO X30Cr13 (1.4028)Austenitic (Nickel) Stainless SteelAISI 302, ISO X10CrNi18-8 (1.4310)* All standard materials conform to that as specifed in ISO 8752, ASME B18.8.2 and ASME B18.8.4M Type B.1THE CHOICE ASME OR ISOSPIROL produces Slotted Pins to both the American National Standard, ASME B18.8.4M, and the International Standard, ISO 8752 (EN 28752).It is our recommendation that you consider ASME pins for all new applications and for your current applications if you are experiencing insertion problems or performance failures. Our recommendation is based on these important advantages of ASME pins: LOWER INSERTION FORCE as a result of the smaller free diameter of the pin in relation to the nominal hole.The pin is securely retained in the hole based on increased wall thickness, higher minimum hardness, and the minimal slot after insertion. NO INTERLOCKING because the maximum gap in the free diameter state is always less than the wall thickness of the pin.HIGHER SHEAR STRENGTH based on increased wall thickness, a higher minimum hardness, and narrower slots which close under load to ensure that the pins fail instantaneously rather than progressively in shear.COMPARISON OF TECHNICAL SPECIFICATIONSCOMPARISON OF RECOMMENDED HOLESASME pins 3 mm and larger can be substituted for ISO pins without any review or change.1.5 to 2.5 mm pins require a change in the maximum specifed hole.ASME recommends tolerance class H10 for holes up to 2.5 mm and H12 for diameters 3 mm and larger.ISO recommends H12 for all diameters.Nom. Dia.ISOASME 1.51.5 / 1.61.5 / 1.5622 / 2.12 / 2.07 2.52.5 / 2.652.5 / 2.583 and upNo differenceNo differenceEXPANDED DIAMETER ASME pins have a smaller expanded or free diameter relative to the nominal hole. CHAMFER SPECIFICATION ASME specifes a maximum chamfer diameter from 0.1 to 0.5 mm smaller than the nominal hole diameter whereas ISO only specifes a chamfer diameter less than the nominal hole diameter.STRAIGHTNESS ASME specifes a straightness requirement. ISO does not address it at all.SHEAR STRENGTH ASME specifes a minimum double shear strength for austenitic stainless steel.ISO does not.MATERIAL ASME includes Beryllium Copper.ISO does not.LENGTH TOLERANCE The differences are minimal:WALL THICKNESS ASME pins have a wall thickness equal to or greater than ISO pins and a greater cross sectional area based on both thickness and strip width.HARDNESS The ASME specifcation for carbon steel is higher (HV 458-560 vs HV 420-520) to maximize the tensile strength and for chrome stainless it is slightly lower(HV 423-544 vs HV 440-560) to avoid the risk of brittleness.Nom. Dia.ISO kNASME kNIncrease % 1.51.581.8+11.4 22.823.5+12.4 2.54.385.5+12.6 36.327.8+12.4 411.2412.3+9.4 517.5419.6+11.2 626.0428.5+9.4 842.7648.8+11.4 1070.1679.1+12.6 12104.1111.6*+7.2 14144.7170.0+17.5 16171.0190.0+11.1 18222.5250.0+12.4 20280.6320.0+11.4SHEAR STRENGTH COMPARISON* SPIROL standard.Pin LengthISOASME4 - 10 mm 0.25 mm 0.40 mm12 - 24 mm 0.50 mm 0.40 mm 26 - 50 mm 0.50 mm 0.50 mm55 -75 mm 0.75 mm 0.60 mm80 - 100 mm 0.75 mm 0.75 mm21.52.02.53.03.54.04.55.06.08.010.012.014.016.018.020.01.602.102.603.103.624.124.625.126.128.1510.1512.1814.1816.1818.1820.211.582.824.386.329.0911.2415.3617.5426.0442.7670.16104.1144.7 3171.0 3222.5 3280.6 3NominalPinDiameterPin DiameterDMax.2Min.1Chamfer LengthCWall ThicknessSRecommendedHole SizeDouble Shear StrengthCarbon & Martensitic S.S.Nominal Nominal Min. Max.1.522.533.544.5*568101214*1618*201.82.42.93.54.04.65.15.66.78.810.812.814.816.818.920.91.72.32.83.33.84.44.95.46.48.510.512.514.516.518.520.50.250.350.400.500.600.650.800.901.202.002.002.002.002.002.003.000.30.40.50.60.750.81.01.01.21.52.02.53.03.03.54.0SPECIFICATIONS in mm1 Minimum diameter is the average of D1, D2, and D3.2 Maximum measured with go-ring gauge.3 Carbon Steel only.ISO 8752EN 28752Minimum kNSTANDARD LENGTHS2.5 3 4Nominal Diameter2 1.5 5 6 8 10 12 Length45681012141618202224262830323540455055606570758085909510020 18* 16 14* 4.5* 3.5Nominal Pin Length Length Tolerance 4 to 10 mm 0.25 mm12 to 50 mm 0.50 mm55 to 100 mm 0.75 mm 4 to 10 mm + 0.5 mm12 to 50 mm + 1.0 mm55 to 100 mm + 1.5 mmLength Tolerance DIN 1481(Ref.)Length Tolerance ISO 8752* Not generally a stocked diameter.B IS LESS THAN NOMINAL PIN DIAMETERPIN MATERIALS AND HARDNESSPIN FINISHESBCarbon SteelHV 420-520KPlain*CMartensitic Stainless SteelHV 440-560P PassivatedDAustenitic Stainless SteelWork Hardened* Plain carbon steel pins have a protective oil fnish.3ASME B18.8.4MTYPE B1 Minimum diameter is the average of D1, D2, and D3.2 Maximum measured with go-ring gauge.3 SPIROL standard.4 Carbon Steel only.STANDARD METRIC SIZES2.5 3 4Nominal Diameter2 1.5 5 6 8 10 12 Length45681012141618202224262830323540455055606570758085909510014* 16 18* 20Nominal Pin Length Length ToleranceUp to 24 mm, incl.0.40 mmOver 24 to 50 mm0.50 mmOver 50 to 75 mm0.60 mmOver 75 mm0.75 mm In conformance with but not part of ASME 18.18.4M.* Not generally a stocked diameter.Min.1.582.102.623.144.165.176.188.2210.2512.2814.3016.3218.3520.40Max.1.41.92.42.93.94.85.87.89.711.713.715.617.619.50.150.20.20.20.30.30.40.40.50.60.81.01.21.40.70.80.91.01.21.41.62.02.42.82.83.03.23.40.350.450.550.650.81.01.21.62.02.53.03.03.54.01.52.02.53.04.05.06.08.010.012.014.016.018.020.01.562.072.583.104.125.126.128.1510.1512.1814.1816.1818.1820.21SPECIFICATIONS in mmMin.1Max.2Max.WallThicknessRecommendedHole SizeMin. Max.Minimum Double Shear Strength ChamferLengthChamferDiameterPin Diameter1.522.534568101214*1618*20NominalPinDiameterNominal1.02.03.24.57.211.416.628.446.160.7AusteniticS.S.Carbon &Martensitic S.S.kND B C S1.83.55.57.812.319.628.548.879.1 111.6 3 170.0 4 190.0 4 250.0 4 320.0 41.662.192.723.254.305.336.368.4510.5112.5514.6016.6518.7120.80PIN MATERIALS AND HARDNESSPIN FINISHESBCarbon SteelHV 458-560KPlain*CMartensitic Stainless SteelHV 423-544P PassivatedDAustenitic Stainless SteelWork HardenedTMechanical Zinc PlatedRPhosphated, Oiled* Plain carbon steel pins have a protective oil fnish.4SPECIFICATIONS in inchesPin Diameter1/16.0625/64.0783/32.0941/8.1255/32.1563/16.1877/32.2191/4.2505/16.3123/8.3757/16.4371/2.5005/8 3.6253/4 3.750Minimum Double Shear Strength WallThickness.062.078.094.125.156.187.219.250.312.375.437.500.625.750.065.081.097.129.160.192.224.256.318.382.445.510.637.764Chamfer LengthChamferDiameter.066.083.099.131.162.194.226.258.321.385.448.513.640.768.069.086.103.135.167.199.232.264.330.395.459.524.653.784.059.075.091.122.151.182.214.245.306.368.430.485.608.730.007.008.008.008.010.011.011.012.014.016.017.025.030.045.028.032.038.044.048.055.065.065.080.095.095.110.125.150RecommendedHole SizeCarbon &Martensitic S.S.Austenitic S.S..012.018.022.028.032.040.048.048.062.077.077.094.118.145NominalPinDiameter 430800115018752750415058507050108001630019800271004250062500Min. Max. Min. Min. 1Max. 2Max. Max.25046067010901600242534004100630095001150015800 1.102.052.984.857.1210.7915.1218.2428.0242.2551.1670.28 1 Minimum diameter is average of D1, D2 and D3. 2 Maximum diameter measured with go-ring gauge. 3 SPIROL standards, Carbon Steel only.ASME B18.8.2kN2.003.565.128.3412.2318.4626.0231.3648.0472.5088.08120.55189.06278.02D B C SNom.PIN MATERIALS AND HARDNESSPIN FINISHESBCarbon SteelHV 458-560KPlain*CMartensitic Stainless SteelHV 423-544PPassivatedDAustenitic Stainless SteelWork HardenedTMechanical Zinc PlatedRPhosphated, Oiled* Plain carbon steel pins have a protective oil fnish.STANDARD SIZESNominal Diameter1/16 5/64 3/32 1/8 5/32 3/16 7/32 5/16 1/2 7/16 3/8 1/4Length3/161/45/163/87/161/29/165/811/163/413/167/815/1611-1/81-1/41-3/81-1/21-5/81-3/41-7/822-1/42-1/22-3/433-1/43-1/23-3/445/8* 3/4*Nominal LengthPin LengthToleranceUp to 1, incl. 0.015Over 1 to 2, incl.0.020Over 2 to 3, incl.0.025Over 3 to 4, incl.0.030Over 40.035* SPIROL standards.kN Lbs. Lbs.5TECHNICAL INFORMATIONSHEAR STRENGTHThe shear test procedure is set forth in ISO 8749, ASME B18.8.2, ASME B18.8.4M, SAE J496, and NASM 10971, which are identical in substance.RECOMMENDED PIN/SHAFT RATIOThe recommended maximum ratio is 1 to 3; that is the pin diameter should never exceed 33.3% of the shaft diameter.If this limit is exceeded, the remaining material in the shaft is inadequate and the shaft will fail before the pin.DOUBLE PINNINGIn situations requiring exceptionally high shear strength, it is possible to use pins in combination by driving an inner pin into an already inserted outer pin.The gaps should be 180 opposed.The recommended hole needs to be increased.It is suggested you consult SPIROL Application Specialists in these situations.WHICH STAINLESS?Martensitic chrome stainless steel is hardened and has strength comparable to carbon steel.It also provides satisfactory corrosion resistance in most cases.Austenitic nickel stainless steel has better corrosion resistance in some environments but since it is not hardened, it has lower strength and requires more care in the insertion process.HOLE PREPARATIONHoles can be drilled, punched or cast with no need for additional reaming or sizing.Care should be taken to avoid undersize holes to eliminate potential pin damage during insertion.The following points are suggested for your consideration:Break or debur the edges, particularly in case of hardened holes.Countersinking is not recommended if it increases the clearance at the shear plane.In case of cast or sintered metal holes, provide a lead-in radius.Whenever possible, punched holes should be punched in the same direction as the direction of pin insertion.Eliminate hole misalignment problems by drilling holes together.In case of hardened collars or similar components, fatten the component at the entry of the hole to avoid two-point contact as the pin starts into the hole.Shear values specifed will only be obtained under the conditions noted in the referenced standards.Of special note:The clearance at the shear plane cannot exceed0.15 mm or .005.The hole has to be the nominal pin diameter (tolerance H6) with a hardness of not less than HV 700.The shear planes have to be at least one pin diameter from each end, and at least two diameters apart.ISO 8752 pins are shear tested with the slot up, aligned with the shear load.ASME B18.8.2, ASME B18.8.4M, NASM 10971, and SAE J496 pins are shear tested with the slot rotated 90 to the shear load.STRAIGHTNESS SPECIFICATION(ASME PINS ONLY)The straightness over the length of the pins shall be such that the pin will pass freely through a ring gauge of the length and diameter as specifed below.Up to 24 mmUp to 124 mm 50 mm1 2Over 50 mmOver 225 0.151 .00550 0.152 .00575 0.153 .0050.20 0.22.0070.40 0.43.0100.60 - 0.64.013Pin Length Gauge LengthMaximum PinDiameter PlusSTRAIGHTNESS GAUGE SPECIFICATIONSSPECIALSOTHER COMMON SPECIALS:Special LengthsSpecial MaterialsSpecial TolerancesSpecial FinishesSpecial PackagingNom. PinDiameter0.200.250.250.500.500.700.700.901.502.403.508.0010.4018.0024.0040.00ExpandedDiameter22.534568102.32.83.34.45.46.48.510.5ChamferLengthWallThicknessISO 13337 (DIN 7346) SPECIFICATIONSDouble Shear StrengthCarbon & Martensitic S.S. Min. kN2.42.93.54.65.66.78.810.80.400.450.450.700.700.900.901.100.200.250.300.500.500.750.751.00Min. Max. Min. Max. NominalLoadShear blockHardenedbushingsSlottedPin*SpacerSpacer and guidesfor shear blockHardened supportblockSupportFixtureLoadHardened shearblockCap Screws*Orientation during testing is specification dependant.Typical pin shear test fxture4ApplicationsTypical applications use spring pins as...Fasteners to secure handles and gears to shaftsRetaining pinsAxle shaftsStop pinsHinge and pivot applicationsCross barsTube reinforcing pinsLocator pinsSPIROL slotted spring pinsare used in many industries.AgricultureAutomotiveConstructionAppliancesElectronicsFurnitureMiningPlasticsRailwaysAerospace 2012Spirol International Corporation01/12ISO/TS 16949:2009 CertifedISO 9001:2008 CertifedChallenge Us!SPIROL Application Engineers will review your application needs and work with your design team to recommend the best solution.One way to start the process is to select Pinning Applications or Installation Systems in our Optimal Application Engineering portal atwww.SPIROL.comSpirol International Corporation30 Rock AvenueDanielson, Connecticut 06239Tel. +1 860.774.8571Fax. +1 860.774.2048(US Distributors: Fax. +1 860.774.0487)Spirol International Corporation Shim Division321 Remington RoadStow, Ohio 44224Tel. +1 330.920.3655Fax. +1 330.920.3659Spirol West Inc.1950 Compton Avenue, Unit 111Corona, California 92881-6471Tel. +1 951.273.5900Fax. +1 951.273.5907Spirol Industries, Ltd.3103 St. Etienne BoulevardWindsor, OntarioCanada N8W 5B1Tel. +1 519.974.3334Fax. +1 519.974.6550Spirol Mxico, S.A. de C.V.Carretera a Laredo KM 16.5 Interior ECol. Moiss SaenzApodaca, N.L. 66613 Mxico Apdo. Postal 151 de Apodaca, N.L.Tel. +52 81 8385 4390Fax. +52 81 8385 4391Spirol Industries Ltd.17 Princewood RoadCorby, NorthantsNN17 4ET United KingdomTel. +44 1536 444800Fax. +44 1536 203415(UK Distributors: Tel. 0800 3890034)Spirol SASCit de lAutomobile ZAC Croix Blandin 18 Rue Lna Bernstein 51100 ReimsFranceTel. +33 3 26 36 31 42 Fax. +33 3 26 09 19 76Spirol GmbHBrienner Strasse 980333 MunichGermanyTel. +49 931 454 670 74Fax. +49 931 454 670 75Spirol SAS en Espaa08940 Cornell de LlobregatBarcelonaSpainTel. +34 93 193 05 32Fax. +34 93 193 25 43Spirol S.A.S., organizan sloka Sokola Tmy 743/16Ostrava-Mrinsk Hory 70900Czech RepublicTel/Fax. +420 417 537 979Spirol International EngineeredFastener Trading Co. Ltd.No. 11 Xi Ya Rd. NorthSection A, 1F, Building 14Wai Gao Qiao Free Trade ZoneShanghai, China 200131Tel. +86 21 5046-1451/1452Fax. +86 21 5046-1540CanadaMexicoEuropeU.S.A.Asia Pacifc