Item # HKB0028XXX, Hexagon Key and Bit, 0.028" Nominal Dia. On Sales Systems Ltd.

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Sales Systems Limited Products and Services > Fasteners Reference Guide > Bolts / Screws > Socket Screws > Hexagon Keys and Bits > Item # HKB0028XXX


	Item # HKB0028XXX, Hexagon Key and Bit, 0.028" Nominal Dia.

Hexagon Keys and Bits

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Each end shall be square with the axis of each arm within 4 deg, and edges may be sharp or chamfered at the option of the manufacturer. The chamfer shall not exceed the values listed.
Any truncation or rounding of hexagon corners within the specified across-corner dimensions shall be evident on all corners.
Material (Steel Alloy). Hexagon keys and bits shall be fabricated from an alloy steel having two or more of the following alloying elements: chromium, nickel, molybdenum, or vanadium, in sufficient quantity to assure that the specified minimum hardness of 48 HRC at the surface for sizes up to and including 3/8 in., and 45 HRC for sizes over 3/8 in., is met when hexagon keys and bits are hardened by quenching from the austenitizing temperature and tempered.

Manufacturer · Specifications · Codes and Standards

Manufacturer

Manufacturer		Industrial Fasteners Institute

Specifications

Product		Socket Screws

Unit of Measure		English

Nominal Key or Bit and Socket Size (Decimal)		0.028 in

Max. Hexagon Width Across Flats (W)		0.0280 in

Min. Hexagon Width Across Flats (W)		0.0275 in

Max. Hexagon Width Across Corners (Y)		0.0314 in

Min. Hexagon Width Across Corners (Y)		0.0300 in

Max. Length (B)		0.312 in

Min. Length (B)		0.125 in

Max. Short Arm Series Length (C)		1.312 in

Min. Short Arm Series Length (C)		1.125 in

Max. Long Arm Series Length (C)		2.688 in

Min. Long Arm Series Length (C)		2.500 in

Min. Radius of Bend (R)		0.062 in

Max. Chamfer (K)		0.003 in

Codes and Standards

Codes and Standards		ASME B18.3 2002

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