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UNC Socket Head Shoulder Screws ASME B18.3-2012 with 1/2 inch diameter shoulder in A2 Stainless Steel

Socket shoulder screw with a UNC imperial coarse thread. They are also known as shoulder bolts, precision shoulder screw and in the US, stripper bolts. The main dimensions are for the diameter and total length required under the head. Shoulder screws have an undercut portion between the thread and shoulder, allowing a close fit. They are used in a wide range of punch and die operations and as shafts, pivots, guides, pins, linkages and trunion mountings. Please note that the nominal diameter here refers to the shoulder diameter, except where shown otherwise.
Image of UNC Socket Head Shoulder Screws ASME B18.3-2012 in A2 image
technical drawing of UNC Socket Head Shoulder Screws ASME B18.3-2012
Technical Summary
d nominal diameter 3/8
D diameter 1/2
D max. max. diameter 0.4980
D min. min. diameter 0.4960
dk max. maximum head diameter 0.750
dk min. minimum head diameter 0.729
k max. maximum head height 0.312
k min. minimum head height 0.302
s drive size 3/8 (0.3750)
d decimal nominal diameter decimal 0.3750
tpi threads per inch 16
b minimum thread length 0.625
Standard ASME B18.3
all dimensions in inches
Datasheet
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Description Sale Qtys Qty Price Breakdown Despatch Estimate
Socket Shoulder Screw UNC 3/8 with 1/2 x 3/8 Inch Shoulder in A2 Stainless
WF60636 - 16 in stock
single screw for £4.41
or box of 3 for £12.92
or bulk of 15 for £62.40
£0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 5/8 Inch Shoulder in A2 Stainless
WF60637 - 16 in stock
single screw for £8.99
or box of 2 for £17.82
or bulk of 10 for £85.58
£0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 3/4 Inch Shoulder in A2 Stainless
WF60638 - 11 in stock
single screw for £9.17
or box of 2 for £18.18
or bulk of 10 for £87.23
£0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 1 Inch Shoulder in A2 Stainless
WF60639 - 10 in stock
single screw for £6.86
or box of 2 for £13.54
or bulk of 10 for £65.37
£0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 1-1/4 Inch Shoulder in A2 Stainless
WF60640 - expected in 6 to 9 days
single screw for £11.39
or box of 2 for £22.64
or bulk of 10 for £108.29
£0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 1-1/2 Inch Shoulder in A2 Stainless
WF60641 - 1 in stock
single screw for £15.79
or box of 2 for £31.09
or bulk of 10 for £150.14
£0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 1-3/4 Inch Shoulder in A2 Stainless
WF60642 - 15 in stock
single screw for £15.46
or box of 2 for £30.46
or bulk of 10 for £147.03
£0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 2 Inch Shoulder in A2 Stainless
WF60643 - 23 in stock
single screw for £15.72
or box of 2 for £30.96
or bulk of 10 for £149.48
£0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 2-1/4 Inch Shoulder in A2 Stainless
WF60644 - expected in 6 to 9 days
single screw for £17.48
or box of 2 for £34.29
or bulk of 10 for £166.14
£0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 2-1/2 Inch Shoulder in A2 Stainless
WF60645 - 11 in stock
single screw for £17.06 £0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 2-3/4 Inch Shoulder in A2 Stainless
WF60688 - expected in 16 to 24 days
single screw for £18.40 £0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 3 Inch Shoulder in A2 Stainless
WF60646 - expected in 6 to 9 days
single screw for £23.15 £0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 3-1/4 Inch Shoulder in A2 Stainless
WF60689 - expected in 6 to 9 days
single screw for £23.47 £0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 3-1/2 Inch Shoulder in A2 Stainless
WF60690 - 22 in stock
single screw for £23.48 £0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 3-3/4 Inch Shoulder in A2 Stainless
WF60691 - 96 in stock
single screw for £18.51 £0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 4 Inch Shoulder in A2 Stainless
WF60692 - expected in 6 to 9 days
single screw for £41.01 £0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 4-1/4 Inch Shoulder in A2 Stainless
WF60693 - expected in 6 to 9 days
single screw for £50.22 £0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 4-1/2 Inch Shoulder in A2 Stainless
WF60694 - expected in 6 to 9 days
single screw for £53.23 £0.00  
Socket Shoulder Screw UNC 3/8 with 1/2 x 6 Inch Shoulder in A2 Stainless
WF60597 - expected in 6 to 9 days
single screw for £70.64 £0.00  
single screw for £4.41
or box of 3 for £12.92
or bulk of 15 for £62.40
£0.00
 
single screw for £8.99
or box of 2 for £17.82
or bulk of 10 for £85.58
£0.00
 
single screw for £9.17
or box of 2 for £18.18
or bulk of 10 for £87.23
£0.00
 
single screw for £6.86
or box of 2 for £13.54
or bulk of 10 for £65.37
£0.00
 
single screw for £11.39
or box of 2 for £22.64
or bulk of 10 for £108.29
£0.00
 
single screw for £15.79
or box of 2 for £31.09
or bulk of 10 for £150.14
£0.00
 
single screw for £15.46
or box of 2 for £30.46
or bulk of 10 for £147.03
£0.00
 
single screw for £15.72
or box of 2 for £30.96
or bulk of 10 for £149.48
£0.00
 
single screw for £17.48
or box of 2 for £34.29
or bulk of 10 for £166.14
£0.00
 
Prices are subject to quantity discounts based on a sliding scale. Enter the desired quantity in the relevant box in the table above. This will automatically calculate a line price indicating the applicable rate for the quantities selected. All prices shown exclude VAT.
technical drawing of UNC Socket Head Shoulder Screws ASME B18.3-2012
Technical Summary
d nominal diameter 3/8
D diameter 1/2
D max. max. diameter 0.4980
D min. min. diameter 0.4960
dk max. maximum head diameter 0.750
dk min. minimum head diameter 0.729
k max. maximum head height 0.312
k min. minimum head height 0.302
s drive size 3/8 (0.3750)
d decimal nominal diameter decimal 0.3750
tpi threads per inch 16
b minimum thread length 0.625
Standard ASME B18.3
all dimensions in inches
Datasheet
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