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Specifications For Coiled Tension Pins

Inch Series ASME B18.8.2

Nominal size or Basic Pin Diameter (Inch)
A
BCRecommended Hole sizeDouble Shear load, Min., lb. 
Pins DiameterChamferStandard Duty Or Medium DutyHeavy DutyLight Duty
Standard DutyHeavy Duty Light dutyDiameterLengthMaterial 
Max.Min.Max.Min.Max. Min.Max.Ref. Max.Min. SAE 1070-1095 and SAE 51420SAE 30302 and SAE 30304SAE 1070-1095 and SAE 51420SAE 30302 and SAE 30304SAE 1070-1095 and SAE 51420SAE 30302 and SAE 30304
1/16     0.0620.0720.0670.0700.0660.0730.0670.0590.0280.0650.061330265475360205160
5/64     0.0780.0880.0830.0860.0820.0890.0830.0750.0320.0810.077550425800575325250
3/32     0.0940.1050.0990.1030.0980.1060.0990.0910.0380.0970.0937756001,150825475360
1/8       0.1250.1380.1310.1360.1300.1390.1310.1210.0440.1290.1241,4001,1002,0001,700825850
5/32     0.1560.1710.0160.1680.1610.1720.1630.1520.0480.1600.1552,2001,7003,1002,4001,3001,000
3/16     0.1870.2050.1960.2020.1940.2070.1960.1820.0550.1920.1853,1502,4004,5003,5001,9001,450
7/32     0.2190.2380.2280.2350.2260.2400.2280.2140.0650.2240.2174,2003,3005,9004,6002,6002,000
1/4       0.2500.2710.2600.2680.2580.2730.2600.2430.0650.2560.2475,5004,3007,8006,2003,3002,600
5/16     0.3120.3370.3240.3340.3220.3390.3240.3040.0800.3190.3088,7006,70012,0009,3008,2004,000
3/8       0.3750.4030.3880.4000.3860.4050.3880.3660.0950.3830.37012,6009,60018,00014,000  
7/16     0.4370.4690.4520.4660.4500.4710.4520.4270.0950.4460.43117,00013,30023,50018,000  
1/2        0.5000.5350.5160.5320.5140.5370.5160.4880.1100.5100.49322,50017,50032,00025,000  
5/8*      0.6250.6610.6420.6580.640  0.6130.1250.6350.618      
3/4*     0.7500.7870.7680.7840.766  0.7380.1500.7600.743      

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Length (Inch)+A23:O59Diameter (Inch)
0.0620.0780.0940.1250.1560.1870.2190.2500.3120.3750.4370.5000.6250.750
  1/4              
  5/16              
  3/8              
  7/16              
  1/2              
  9/16              
  5/8              
 11/16              
  3/4              
 13/16              
  7/8              
 15/16              
1              
1-1/8              
1-1/4              
1-3/8              
1-1/2              
1-5/8              
1-3/4              
1-7/8              
2              
2-1/4              
2-1/2              
2-3/4              
3              
3-1/4              
3-1/2              
3-3/4              
4              
4-1/4              
4-1/2              
4-3/4              
5              
5-1/4              
5-1/2              
5-3/4              
6              

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Technical Data
Specifications Material Stainless Steel 
ASME B 18.8.2-2000 Carbon SteelMartensitic Chrome 420Austenitic Nickel SAE 302-SAE 304 
NASM10971 Per specifications
NAS 1407  
NAS561  
NASM39086  
Hardness
DiameterScale 
1/16 -3/32Vickers420-545460-560work Hardened
1/8-5/16Rockwell 15N82 - 86.483.5 - 86.9work Hardened
 Rockwell C43-5246 - 53 
3/8 -1/2 Rockwell A72 - 76.873.6 - 77.4work Hardened
 Rockwell C43-5246-53 

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Length Tolerances
Nominal Pin Length Length Tolerance
up to 2"+/- 0.010
Over 2" to 3" +/- 0.015
Over 3"+/- 0.020

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Straightness Tolerances
Pin LengthTolerance
Up to 1" 0.007
over 1" to 2" 0.010
Over 2"0.013

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