Flat Head Socket Head Cap Screw Grade 12.9 NC

SKU: TOAP

Flat Head Socket Head Cap Screw Grade 12.9 NC

ASTM A574 Grade 12.9 flat head socket head cap screws of different diameters and lengths for use in connections.
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$0.53$128.24
Tipo

Allen screw

Grado

ASTM A574 – 12.9

Material

Carbon alloy steel

Dimensiones

ASME B18.6.3

Acabado

Pavonado

Cabeza

Plana

Cuerda

UNC Standard

Diámetro

1/8, #6, 5/32, 3/16, 1/4, 5/16, 3/8, 1/2, 5/8, 3/4

Largo

1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 1 3/4, 2, 2 1/4, 2 1/2, 3, 3 1/2, 4, 4 1/2, 5, 6

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Allen screw with flat round head with a flat and beveled surface. Cylindrical and knurled sides with a hexagon socket for adjustment.

Flat head Allen screw

Flat head allen bolt specifications
Diameter Body diameter (D) Head diameter (A) Head height (H) Diameter Protrusion indicator (G) Protuberance (P) Internal hexagon (J) Itile transition diameter (F) Tensile strength (lbs. Min) Shear strength Torques (in./lbs.)
Max. Min. Theoretical sharp max Abs. Min. Ref. Max. Min. Max. Min. Nom. Max. UNRC UNRF Lbs. Min UNRC UNRF
1/4 0.2500 0.2435 0.531 0.480 0.161 0.424 0.423 0.064 0.043 5/32 0.280 4,750 4,750 4,710 100 110
5/16 0.3125 0.3053 0.656 0.600 0.198 0.539 0.538 0.070 0.047 3/16 0.343 7,800 7,800 7,360 200 220
3/8 0.3750 0.3678 0.781 0.720 0.234 0.653 0.652 0.076 0.050 7/32 0.495 11,600 11,600 10,600 350 400
7/16 0.4375 0.4294 0.844 0.781 0.234 0.690 0.689 0.092 0.063 1/4 0.468 15,900 15,900 14,400 560 -
1/2 0.500 0.4919 0.938 0.872 0.251 0.739 0.738 0.119 0.087 5/16 0.530 21,200 21,200 18,850 850 1,000
5/8 0.6250 0.616 1.188 1.112 0.324 0.962 0.961 0.135 0.096 3/8 0.655 33,800 33,800 29,450 1,700 -
3/4 0.7500 0.7406 1.438 1.355 0.396 1.186 1.185 0.150 0.105 1/2 0.780 50,000 50,000 42,400 3,000 -
TOLERANCE IN LENGTH ALLEN FLAT HEAD SCREW:
Length tolerance Nominal diameter Nominal Length
Up to 1" From 1" to 2 ½" from 2 ½" to 6
0 a 3/8" -0.03 -0.04 -0.06
7/16" a 3/4" -0.03 -0.06 -0.08
Body and handle lengths: Flat head allen bolt specifications
Diameter 1/4 5/16 3/8 7/16 1/2 5/8 3/4
LT Min. 1.000 1.125 1.250 1.375 1.500 1.750 2.000
LTT Max. 1.50 1.71 1.94 2.17 2.38 2.82 3.25
Length LGH LBH LGH LBH LGH LBH LGH LBH LGH LBH LGH LBH LGH LBH
1.25
1.50
1.75 0.75 0.50
2.00 0.75 0.50 0.88 0.60
2.25 1.25 1.00 0.88 0.60 1.00 0.69
2.50 1.75 1.50 1.38 1.10 1.00 0.69 1.12 0.77 1.00 0.62
3.00 2.25 2.00 1.88 1.60 1.50 1.19 1.62 1.27 1.00 0.62
3.50 2.38 2.10 2.00 1.69 2.12 1.77 1.75 1.36 1.50 1.0 1.50 1.00
4.00 2.88 2.60 2.50 2.19 2.62 2.27 2.50 2.12 2.25 1.80 1.50 1.00
4.50 3.38 3.10 3.00 2.69 3.12 2.77 2.50 2.12 2.25 1.80 2.50 2.00
5.00 3.88 3.60 3.50 3.19 3.62 3.27 3.25 2.86 3.00 2.50 2.50 2.00
5.50 4.38 4.10 4.00 3.69 4.12 3.77 4.00 3.62 3.75 3.30 3.50 3.00
6.00 4.88 4.60 4.50 4.19 4.62 4.27 4.00 3.62 3.75 3.30 3.50 3.00
 
Allen Flat Steel
Description Similar to the allen button but with an 82 degree countersunk flat head.
Application Used when a high-strength lush-mount screw is required. Frequently used for tools or dies where moving parts pass over an area.
Material Steel alloyed with min 0.28% to 0.50% carbon, max 0.040% phosphorus, max 0.045% sulfur and one or more of the following elements to achieve the desired strength: chromium, nickel, molybdenum or vanadium.
Heat Treatment Hardening in oil above the transformation temperature. Tempered to a temperature of not less than 650° F
Hardness 0-1/2" D: Rockwell C39-44. Above 1/2" D: Rockwell C37-44.
Tensile strength 0-1/2" D: 145,000 psi min. Above 1/2" D: 135,000 psi min.
Elastic limit 153,000 psi min (above ½" diameter).
Elongation 8% min (Applies to screws 4 times its diameter in length).
Area reduction 35% min (machined over ½" diameter)
 
Tipo

Allen screw

Grado

ASTM A574 – 12.9

Material

Carbon alloy steel

Dimensiones

ASME B18.6.3

Acabado

Pavonado

Cabeza

Plana

Cuerda

UNC Standard

Diámetro

1/8, #6, 5/32, 3/16, 1/4, 5/16, 3/8, 1/2, 5/8, 3/4

Largo

1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 1 3/4, 2, 2 1/4, 2 1/2, 3, 3 1/2, 4, 4 1/2, 5, 6