UNC

UNC

Socket shoulder screws
Standards ASME/ANSI 18.3 - Thread fit 3A
Heat treated alloy steel

Categories: , .

Ref: ?
Example: Ref. = H79NC - XX/XX - X XX/XX
↑ ↑
D L
5/6 - 1/4 x 1"1/4
Ref. = H79NC - 5 - 16 - 1 - 4 - 1 - 1 - 4

D #10 1/4” 5/16” 3/8” 1/2” 5/8”
D1 1/4 5/16 3/8 1/2 5/8 3/4
D1 (max.) 0.2480 0.3105 0.3730 0.4980 0.6230 0.7480
D1 (min.) 0.2460 0.3085 0.3710 0.4960 0.6210 0.7460
L1 + 0,000 - 0,020 0.375 0.438 0.500 0.625 0.750 0.875
D2 (max.) 0.375 0.438 0.563 0.750 0.875 1.000
K (max.) 0.188 0.219 0.250 0.313 0.375 0.500
S 1/8 5/32 3/16 1/4 5/16 3/8
5.7 14.1 29.9 53.1 129.9 226
L
± 0.005		 3/8 3/8 1/4 3/8 3/4 1” 1/2
1/2 1/2 3/8 1/2 1” 1” 3/4
5/8 5/8 1/2 5/8 1” 1/4 2”
3/4 3/4 5/8 3/4 1” 1/2 2” 1/4
1” 1” 3/4 1” 1” 3/4 2” 1/2
1” 1/4 1” 1/4 1” 1” 1/4 2” 2” 3/4
1” 1/2 1” 1/2 1” 1/4 1” 1/2 2” 1/4 3”
1” 3/4 1” 1/2 1” 3/4 2” 1/2 3” 1/4
2” 1” 3/4 2” 2” 3/4 3” 1/2
2” 2” 1/4 3” 3” 3/4
2” 1/4 2” 1/2 3” 1/4 4”
2” 1/2 2” 3/4 3” 1/2 4” 1/4
2” 3/4 3” 3” 3/4 4” 1/2
3” 3” 1/4 4” 4” 3/4
3” 1/4 3” 1/2 4” 1/4 5”
3” 1/2 3” 3/4 4” 1/2 5” 1/2
4” 4” 4” 3/4 6”
4” 1/4 5”
4” 1/2 5” 1/2
4” 3/4 6”
5”
Recommended tightening torque

Tensile strength 965 N/mm2
Hardness 32 HRC min.
Working temperatures -29º a +204ºC
Minimum elongation at fracture 15%
Box qty.
x10  
x25  

Ref: ?
Example: Ref. = H79NC - XX/XX - X XX/XX
↑ ↑
D L
5/6 - 1/4 x 1"1/4
Ref. = H79NC - 5 - 16 - 1 - 4 - 1 - 1 - 4

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