Socket Shoulder Screws

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K. M. Steel India

Khetwadi, Mumbai, Maharashtra

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Member Since 13 Years
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Threads: ANSI B 1.13 M, ISO 262
Similar Specifications: ANSI B18.3.3M, ISO 7379, DIN 9841.
Shoulder screws have an undercut portion between the thread and shoulder, allowing a close fit. They’re used for a wide range of punch and die operations, such as the location and retention of stripper plates, and act as a guide in blanking and forming presses.
Other applications for shoulder screws include: bearing pins for swing arms, links and levers, shafts for cam rolls and other rotating parts, pivots, and stud bolts. Shoulder screws are sometimes referred to as stripper bolts, resulting from their use with stripper plates and springs.

Features:

Material: ASTM A574M alloy steel
Hardness: Rc 36-43
Tensile Stress: 1100 MPa based on minimum thread neck area (J min.).
Shear Stress: 660 MPa
Concentricity: Body to head O.D. within 0.15 TIR when checked in a “V”
block. Body to thread pitch diameter within 0.1 TIR when checked at a distance of 5.0 C from the shoulder at the threaded end.
Squareness, concentricity, parallelism, and bow of body to thread pitch
diameter shall be within 0.05 TIR per centimeter of body length with a maximum of 0.5 when seated against the shoulder in a threaded bushing and checked on the body at a distance of 2.5 “B” from the underside of the head.
Squareness: The bearing surface of the head shall be perpendicular to
the axis of the body within a maximum deviation of 2�.
Thread Class: 4g 6g

Socket Head Shoulder Bolts are purposed for use in punch or die applications in the placing of stripper plates. Socket Head Shoulder Bolts are a precision made product with a polished shoulder, manufactured to precise measurements and tolerances

Socket Head Shoulder Bolts can be guides for banking and forming presses.

Socket Shoulder Screws are available in metric sizes from M5 to M12 and are commonly used as standard fasteners on many applications.

The head of the cap screw has a hexagonal recessed drive this can be adjusted using a Hex driver or Allen key.

Alternative names for socket shoulder screws are: Hex Shoulder Socket Screws, socket head shoulder screws, Shoulder hex screws, Metric shoulder screws.

Nominal Size	D		H		X	S		K	F		L
	Head Diameter		Head Height		Head Side Height	Hexagon Socket Size		Key Engage ment	Fillet Extension		Max Standard Length
	Max	Min	Max	Min	Ref	Nom		Min	Max	Min	Nom
4 5 6 8	0.213 0.238 0.262 0.312	0.201 0.226 0.250 0.298	0.059 0.066 0.073 0.087	0.051 0.055 0.063 0.077	0.015 0.015 0.015 0.015	1/16 5/64 5/64 3/32	0.062 0.078 0.078 0.094	0.035 0.044 0.044 0.052	0.010 0.010 0.010 0.015	0.005 0.005 0.005 0.010	0.50 0.50 0.63 0.75
10 1/4 5/16 3/8	0.361 0.437 0.547 0.656	0.347 0.419 0.527 0.636	0.101 0.132 0.166 0.199	0.091 0.122 0.152 0.185	0.020 0.031 0.031 0.031	1/8 5/32 3/16 7/32	0.125 0.156 0.188 0.219	0.070 0.087 0.105 0.122	0.015 0.020 0.020 0.020	0.010 0.015 0.015 0.015	1.00 1.00 1.00 1.25
1/2 5/8	0.875 1.000	0.851 0.970	0.265 0.331	0.245 0.311	0.046 0.062	5/16 3/8	0.312 0.375	0.175 0.210	0.030 0.030	0.020 0.020	2.00 2.00