Heavy hex screw

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Heavy hex screw

Heavy hex screw

Standard

DIMESION : ASME B 18.2.3.1M
Nominal
Size 		d1 H B S
Max Min Max Min Max Min L≤125 125>L
L≤200 		L>200
M12 X 1.75P 12.00 11.73 7.76 7.24 21.00 20.67 30 36 49
M14 X 2.0P 14.00 13.73 9.09 8.51 24.00 23.67 34 40 53
M16 X 2.0P 16.00 15.73 10.32 9.68 27.00 26.67 38 44 57
M20 X 2.5P 20.00 19.67 12.88 12.12 34.00 33.00 46 52 65
M24 X 3.0P 24.00 23.67 15.44 14.56 41.00 40.00 54 60 73
M30 X 3.5P 30.00 29.67 19.48 17.92 50.00 49.00 66 72 85
M36 X 4.0P 36.00 35.61 23.38 21.72 60.00 58.80 78 84 97
DIMESION : ASME B 18.2.1
Nominal
Size 		d1 H B S
Max Min Basic Max Min Basic Max Min L≤6˚ 6˚>L
1/2 0.500 0.500 0.482 5/16 0.323 0.302 7/8 0.875 0.850 1.250 1.500
5/8 0.625 0.625 0.605 25/64 0.403 0.378 1-1/16 1.062 1.031 1.500 1.750
3/4 0.750 0.750 0.729 15/32 0.483 0.455 1-1/4 1.250 1.212 1.750 2.000
7/8 0.875 0.875 0.852 35/64 0.563 0.531 1-7/16 1.438 1.394 2.000 2.250
1 1.000 1.000 0.976 39/64 0.627 0.591 1-5/8 1.625 1.575 2.250 2.500
1-1/8 1.125 1.125 1.098 11/16 0.718 0.658 1-13/16 1.812 1.756 2.500 2.750
1-1/4 1.250 1.250 1.223 25/32 0.813 0.749 2 2.000 1.938 2.750 3.000

Mechanical & Physical Property

제품규격및성징  
Meterial Code Grade SIZE Tensile Strength Yield Strength Elongation Reduction of Area Hardness Impact Value
ASTM A193
/ A193M 		B7 2 1/2" and under min 125 ksi min 105 ksi min 16% min 50% max HRC 35
over 2 1/2" to 4" min 115 ksi min 95 ksi min 16% min 50% max HRC 35
over 4" to 7" min 100 ksi min 75 ksi min 18% min 50% max HRC 35
M64 and under min 860 Mpa min 720 Mpa min 16% min 50% max HRC 35
over M64 to M100 min 795 Mpa min 655 Mpa min 16% min 50% max HRC 35
over M100 to M180 min 690 Mpa min 515 Mpa min 18% min 50% max HRC 35
B16 2 1/2" and under min 125 ksi min 105 ksi min 18% min 50% max HRC 35
over 2 1/2" to 4" min 110 ksi min 95 ksi min 17% min 45% max HRC 35
over 4" to 8" min 100 ksi min 85 ksi min 16% min 45% max HRC 35
M64 and under min 860 Mpa min 725 Mpa min 18% min 50% max HRC 35
over M64 to M100 min 760 Mpa min 655 Mpa min 17% min 45% max HRC 35
over M100 to M180 min 690 Mpa min 585 Mpa min 16% min 45% max HRC 35
ASTM A307 Grade A - min 60 ksi - min 18% - HRB 69 ~ HRB 100
Grade b - 60 ksi ~ 100 ksi - min 18% - HRB 69 ~ HRB 95
ASTM 320
/ A320M		 L7 2 1/2" (65) and under min 125 ksi min 105 ksi min 16% min 50% max HRC 35 min 27 J (-101˚C)
(10 by 10mm)
min 860 Mpa min 725 Mpa
ASTM 325 TYPE 1 1/2" to 1 min 120 ksi min 92 ksi min 14% min 35% HRX 25 ~ HRX 34
1 1/8" to 1/2" min 105 ksi min 81 ksi HRC 19 ~ HRX 30
ASTM A325M TYPE 1 M12 to M36 min 830 Mpa min 660 Mpa min 14% min 35% HRC 25 ~ HRC 34

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