Standard and Specialty Industrial Fastener Material Strengths (Part 2)
Material strength for standard/specialty industrial fasteners and long length fasteners from Elgin Fastener Group, as well as industrial machine screws, is listed below by grade, type and class and is separated into 130,000 psi and 150,000.
Material
Strength - 130,000 psi
Class 9.8
|
|
Size |
Dia. |
Stress
Area |
Tensile
Str.
Lbs |
Proof
Load Str.
Lbs |
Dry
Parts
K=.2 |
Lubricated
Parts K=.15 |
Min
Break Str. (in/lbs) |
Max
Torque Value (in/lbs) |
Min
Break Str, (in/lbs) |
Max
Torque
Value (in/lbs) |
8-32 |
0.1640 |
0.01400 |
1,820 |
1,274 |
44.8 |
31.3 |
33.6 |
23.5 |
10-24 |
0.1900 |
0.01750 |
2,275 |
1,593 |
64.8 |
45.4 |
48.6 |
34.0 |
10-32 |
0.1900 |
0.02000 |
2,600 |
1,820 |
74.1 |
51.9 |
55.6 |
38.9 |
1/4-20 |
0.2500 |
0.03180 |
4,134 |
2,894 |
155.0 |
108.5 |
116.3 |
81.4 |
1/4-28 |
0.2500 |
0.03637 |
4,728 |
3,310 |
177.3 |
124.1 |
133.0 |
93.1 |
5/16-18 |
0.3125 |
0.05240 |
6,812 |
4,768 |
319.3 |
223.5 |
239.5 |
167.6 |
5/16-24 |
0.3125 |
0.05800 |
7,540 |
5,278 |
353.4 |
247.4 |
265.1 |
185.6 |
3/8-16 |
0.3750 |
0.07750 |
10,075 |
7,053 |
566.7 |
396.7 |
425.0 |
297.5 |
3/8-24 |
0.3750 |
0.08780 |
11,414 |
7,990 |
642.0 |
449.4 |
481.5 |
337.1 |
7/16-14 |
0.4375 |
0.10630 |
13,819 |
9,673 |
906.9 |
634.8 |
680.2 |
476.1 |
7/16-20 |
0.4375 |
0.11870 |
15,431 |
10,802 |
1012.7 |
708.9 |
759.5 |
531.6 |
M3.5x0.6 |
0.1380 |
0.01051 |
1,366 |
956 |
28.3 |
19.8 |
21.2 |
14.8 |
M4x0.7 |
0.1575 |
0.01349 |
1,754 |
1,228 |
41.4 |
29.0 |
31.1 |
21.8 |
M5x0.8 |
0.1970 |
0.02201 |
2,861 |
2,003 |
84.6 |
59.2 |
63.4 |
44.4 |
M6x1.0 |
0.2360 |
0.03116 |
4,050 |
2,835 |
143.4 |
100.4 |
107.5 |
75.3 |
M7x1.0 |
0.2755 |
0.04473 |
,5815 |
4,071 |
240.3 |
168.2 |
180.2 |
126.2 |
M8x1.25 |
0.3150 |
0.05673 |
7,375 |
5,162 |
348.5 |
243.9 |
261.3 |
182.9 |
M10x1.5 |
0.3940 |
0.08990 |
11,687 |
8,181 |
690.7 |
483.5 |
518.0 |
362.6 |
M12x1.75 |
0.4720 |
0.13067 |
16,987 |
11,891 |
1202.7 |
841.9 |
902.0 |
631.4 |
Material
Strength - 150,000 psi
Class 10.9 or Grade 8
|
|
Size |
Dia. |
Stress
Area |
Tensile
Str.
Lbs |
Proof
Load Str.
Lbs |
Dry
Parts
K=.2 |
Lubricated
Parts K=.15 |
Min
Break Str. (in/lbs) |
Max
Torque Value (in/lbs) |
Min
Break Str, (in/lbs) |
Max
Torque
Value (in/lbs) |
8-32 |
0.1640 |
0.01400 |
2,100 |
1,680 |
51.7 |
41.3 |
38.7 |
31.0 |
10-24 |
0.1900 |
0.01750 |
2,625 |
2,100 |
74.8 |
59.9 |
56.1 |
44.9 |
10-32 |
0.1900 |
0.02000 |
3,000 |
2,400 |
85.5 |
68.4 |
64.1 |
51.3 |
1/4-20 |
0.2500 |
0.03180 |
4,770 |
3,816 |
178.9 |
143.1 |
134.2 |
107.3 |
1/4-28 |
0.2500 |
0.03637 |
5,456 |
4,364 |
204.6 |
163.7 |
153.4 |
122.7 |
5/16-18 |
0.3125 |
0.05240 |
7,860 |
6,288 |
368.4 |
294.8 |
276.3 |
221.1 |
5/16-24 |
0.3125 |
0.05800 |
8,700 |
6,960 |
407.8 |
326.3 |
305.9 |
244.7 |
3/8-16 |
0.3750 |
0.07750 |
11,625 |
9,300 |
653.9 |
523.1 |
490.4 |
392.3 |
3/8-24 |
0.3750 |
0.08780 |
13,170 |
10,536 |
740.8 |
592.7 |
555.6 |
444.5 |
7/16-14 |
0.4375 |
0.10630 |
15,945 |
12,756 |
1046.4 |
837.1 |
784.8 |
627.8 |
7/16-20 |
0.4375 |
0.11870 |
17,805 |
14,244 |
1168.5 |
934.8 |
876.3 |
701.1 |
M3.5x0.6 |
0.1380 |
0.01051 |
1,577 |
1,261 |
32.6 |
26.1 |
24.5 |
19.6 |
M4x0.7 |
0.1575 |
0.01349 |
2,024 |
1,619 |
47.8 |
38.2 |
35.9 |
28.7 |
M5x0.8 |
0.1970 |
0.02201 |
3,302 |
2,641 |
97.6 |
78.0 |
73.2 |
58.5 |
M6x1.0 |
0.2360 |
0.03116 |
4,673 |
3,739 |
165.4 |
132.3 |
124.1 |
99.3 |
M7x1.0 |
0.2755 |
0.04473 |
6,710 |
5,368 |
277.3 |
221.8 |
208.0 |
166.4 |
M8x1.25 |
0.3150 |
0.05673 |
8,510 |
6,808 |
402.1 |
321.7 |
301.6 |
241.2 |
M10x1.5 |
0.3940 |
0.08990 |
13,485 |
10,788 |
797.0 |
637.6 |
597.7 |
478.2 |
M12x1.75 |
0.4720 |
0.13067 |
19,601 |
15,680 |
1387.7 |
1110.2 |
1040.8 |
832.6 |
Return
to Material Strengths (Part 1)
Torque Tensioning
Screw Point Types
Pilot Hole Sizes
Bolt & Screw Head Types
Weights per Thousand
Unified External Screw Threads
Rod & Bolt Diameters
Metric Conversions
Hole Sizes for Die Casting
Material Strength
Drive Tool Sizes
Hardness Conversions
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