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Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.
Unit of Measure

Manufacturer

Manufacturer

Industrial Fasteners Institute

Specifications

Product

Drive Screws

Unit of Measure

English

Nominal Size or Basic Screw Dia.

No. 10

Nominal Size or Basic Screw Dia. (Decimal)

0.1820 in

Number of Thread Starts

8

Max. Outside Dia. (D)

0.182 in

Min. Outside Dia. (D)

0.177 in

Max. Head Dia. (A)

0.359 in

Min. Head Dia. (A)

0.334 in

Max. Head Height (H)

0.137 in

Min. Head Height (H)

0.123 in

Max. Pilot Dia. (P)

0.150 in

Min. Pilot Dia. (P)

0.146 in

Codes and Standards

Codes and Standards

ASME B18.6.4 1998

Recommended Hole Size

Drill Size No.

20

Hole Dia.

0.161 in