Imperial Shoulder Bolt

Shoulder Bolts

Unified National Coarse

S355 - Bare Steel

ANSI/ASME B18.3

2003

Shoulder Bolt Technical Drawing
Diameter d1 1/4 5/16 3/8 1/2 5/8 3/4 1
Diameter Code 014 016 018 024 026 028 034
d1 min. .2460 .3085 .3710 .4960 .6210 .7460 .9960
d1 max. .2480 .3105 .3730 .4980 .6230 .7480 .9980
d2 #10 1/4 5/16 3/8 ½ 5/8 3/4
d3 max. .375 .438 .562 .750 .875 1.000 1.312
k max. .188 .219 .250 .312 .375 .500 .625
t min. .094 .117 .141 .188 .234 .281 .375
L2 .375 .438 .500 .625 .750 .875 1
s 1/8 5/32 3/16 1/4 5/16 3/8 1/2
.125 .156 .188 .250 .312 .375 .500
R.S. Torque (in-lb) 35 90 200 363 922 1864 3443
Length Code Pkg.
1/4 0025 25 25
3/8 0038 25 25 25 25
1/2 0050 25 25 25 25
5/8 0063 25 25 25 25
3/4 0075 25 25 25 25
1 0100 25 25 25 25 25 10
1-1/4 0125 25 25 25 25 25 10
1-1/2 0150 25 25 25 25 25 10 1
1-3/4 0175 25 25 25 25 25 10
2 0200 25 25 25 25 25 10 1
2-1/4 0225 25 25 25 10
2-1/2 0250 25 25 25 25 10 1
2-3/4 0275 25 25 25 10
3 0300 25 25 10 10 1
3-1/4 0325 25 25 10 10
3-1/2 0350 25 25 10 10
3-3/4 0375 25 25 10 10
4 0400 25 25 10 10 1
4-1/4 0425 25 10
4-1/2 0450 25 10 10
4-3/4 0475 25 10
5 0500 25 10 10
5-1/2 0550 10 10
6 0600 25 10 10
Order Number -> 1/4 x 1 = S355-014-0100 (Diameter Code x Length Code)


Hardness (HRC) 39-43
Tensile Strength (psi) 140,000 min.

R.S. Torque = Recommended Seating Torque