Item # LHHSCS06250XXX, Low Head Hexagon Socket Cap Screw, 0.6250" Nominal Dia. On Sales Systems Ltd.

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Sales Systems Limited Products and Services > Fasteners Reference Guide > Bolts / Screws > Socket Screws > Low Head Hexagon Socket Cap Screws > Item # LHHSCS06250XXX


	Item # LHHSCS06250XXX, Low Head Hexagon Socket Cap Screw, 0.6250" Nominal Dia.

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General Note: This product, although a high strength precision fastener, is recommended for lighter fastening applications. It is not suggested for use in critical high strength applications where socket head cap screws should normally be used. They are designed to be used in applications where head height clearance is a problem. Because of their reduced head height, and smaller socket size, they normally cannot be properly preloaded as a standard socket cap screw and should not be subjected to high dynamic loads.

Nominal Size. Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.
Body. The term body refers to the unthreaded cylindrical portion of the shank for those screws not threaded to the head.
Head Diameter. Heads shall be plain, not knurled.
Head Chamfer. The top of the head shall be flat. The intersection of the top of the head and side of the head may be chamfered or radiused within the limits of C, at the manufacturer's option.
Bearing Surface. The plane of the bearing surface shall be perpendicular to the axis of the shank, with a maximum deviation of one degree, obtained by holding the screw on the body or major thread diameter within one dia. of the bearing surface of the head, but beyond the maximum

Manufacturer · Specifications · Codes and Standards

Manufacturer

Manufacturer		Industrial Fasteners Institute

Specifications

Product		Socket Screws

Unit of Measure		English

Nominal Size or Basic Screw Dia.		5/8 in

Nominal Size or Basic Screw Dia. (Decimal)		0.6250 in

Max. Body Diameter (D)		0.6250 in

Min. Body Diameter (D)		0.6163 in

Max. Head Diameter (A)		0.875 in

Min. Head Diameter (A)		0.867 in

Max. Head Height (H)		0.316 in

Min. Head Height (H)		0.306 in

Max. Chamfer or Radius (C)		0.070 in

Nom. Hexagon Socket Size (J)		5/16 in

Nom. Hexagon Socket Size Decimal (J)		0.312 in

Min. Key Engagement (T)		0.250 in

Max. Chamfer or Radius (K)		0.015 in

Codes and Standards

Codes and Standards		ASME B18.3 2002

DOWNLOADS


		Body and Grip Lengths (PDF, 591KB)

		Shank Straightness (PDF, 245KB)

Underhead Fillets



	Underhead Fillets for Socket Head Cap Screws

Item # LHHSCS06250XXX, Low Head Hexagon Socket Cap Screw, 0.6250" Nominal Dia.

Manufacturer

Product

Unit of Measure

Nominal Size or Basic Screw Dia.

Nominal Size or Basic Screw Dia. (Decimal)

Max. Body Diameter (D)

Min. Body Diameter (D)

Max. Head Diameter (A)

Min. Head Diameter (A)

Max. Head Height (H)

Min. Head Height (H)

Max. Chamfer or Radius (C)

Nom. Hexagon Socket Size (J)

Nom. Hexagon Socket Size Decimal (J)

Min. Key Engagement (T)

Max. Chamfer or Radius (K)

Codes and Standards