Material Strengths (Part 2)
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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