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Hexagon Keys and Bits
Socket Screws
- 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.
Item # |
Description |
Nominal Size or Basic Product Dia. |
Max. (W) |
Max. (Y) |
Max. (B) |
Max. Short Arm Series (C) |
Min. (R) |
|---|---|---|---|---|---|---|---|
 | |||||||
| HKB0109XXX | N/A Hexagon Key and Bit, 0.109" Nominal Dia. | Nominal Size or Basic Product Dia. N/A 7/64 in | Max. (W) N/A 0.1094 in | Max. (Y) N/A 0.1238 in | Max. (B) N/A 0.797 in | Max. Short Arm Series (C) N/A 2.219 in | Min. (R) N/A 0.109 in |
| HKB0875XXX | N/A Hexagon Key and Bit, 0.875" Nominal Dia. | Nominal Size or Basic Product Dia. N/A 7/8 in | Max. (W) N/A 0.8750 in | Max. (Y) N/A 1.0020 in | Max. (B) N/A 2.469 in | Max. Short Arm Series (C) N/A 8.344 in | Min. (R) N/A 0.875 in |
| HKB0562XXX | N/A Hexagon Key and Bit, 0.562" Nominal Dia. | Nominal Size or Basic Product Dia. N/A 9/16 in | Max. (W) N/A 0.5625 in | Max. (Y) N/A 0.6420 in | Max. (B) N/A 1.844 in | Max. Short Arm Series (C) N/A 5.844 in | Min. (R) N/A 0.562 in |
| HKB0141XXX | N/A Hexagon Key and Bit, 0.141" Nominal Dia. | Nominal Size or Basic Product Dia. N/A 9/64 in | Max. (W) N/A 0.1406 in | Max. (Y) N/A 0.1593 in | Max. (B) N/A 0.891 in | Max. Short Arm Series (C) N/A 2.469 in | Min. (R) N/A 0.141 in |
