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Screw Size
1/2"
5/8"
3/4"
7/8"
1"
1
1/8"
1
1/4"
1
3/8"
1
1/2"
M12
M16
M20
M22
M24
M27
M30
M36
Finish
Galvanized
Zinc Plated
Zinc Yellow-Chromate Plated
Fastener Strength Grade/Class
ASTM Grade A325
ASTM Grade A490
ISO Class 8.8
ISO Class 10.9
SAE Grade 8
ID
0.520"
0.657"
0.785"
0.915"
1.045"
1.155"
1.310"
1.442"
1.570"
12.6 mm
16.7 mm
21.0 mm
23.0 mm
25.1 mm
28.4 mm
31.4 mm
37.7 mm
Thickness
0.104" to 0.111"
0.104" to 0.180"
0.126" to 0.133"
0.126" to 0.220"
0.126" to 0.240"
0.142" to 0.149"
0.142" to 0.230"
0.142" to 0.240"
0.142" to 0.260"
0.158" to 0.165"
0.158" to 0.240"
0.158" to 0.260"
0.158" to 0.270"
0.158" to 0.280"
2.6 mm to 4.6 mm
System of Measurement
Inch
Metric
OD
1.073"
1.323"
1.478"
1.760"
2.010"
2.260"
2.510"
2.760"
3.010"
27.3 mm
33.6 mm
40.6 mm
42.9 mm
48.7 mm
54.4 mm
58.4 mm
70.4 mm
Specifications Met
ASME Standard
ASTM Standard
Tension Indicated
10,000 lbf
10,500 lbf
12,000 lbf
15,000 lbf
17,000 lbf
19,000 lbf
24,000 lbf
26,000 lbf
27,000 lbf
28,000 lbf
35,000 lbf
39,000 lbf
49,000 lbf
51,000 lbf
64,000 lbf
Performance
Corrosion Resistant
High Strength
Tension Indicating
Thread Size
1/2"
-13
5/8"
-11
3/4"
-10
Hardness
Rockwell C33
Rockwell C37
RoHS
Not Compliant
DFARS Specialty Metals
Exempt
Not Compliant
Export Control Classification Number (ECCN)
EAR99
REACH
Compliant
Not Compliant
Length
1
1/2"
1
3/4"
2"
2
1/2"
3"
Fastener Strength Rating
Medium
High
Threading
Fully Threaded
Partially Threaded
Head Height
3/8"
29/64"
17/32"
Head Width
3/4"
15/16"
1
1/8"
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