Item # item-2834, Type IA Cross Recess Dimensions for Flat Countersunk Trim Head Tapping Screw, with 0.198" Recess Dia. On Sales Systems Ltd.

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	Item # item-2834, Type IA Cross Recess Dimensions for Flat Countersunk Trim Head Tapping Screw, with 0.198" Recess Dia.

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

This type of recess has a large center opening, wide straight wings, and blunt bottom, with all edges relieved or rounded.

Manufacturer · Specifications · Codes and Standards

Manufacturer

Manufacturer		Industrial Fasteners Institute

Specifications

Product		Tapping Screws

Unit of Measure		English

Type		Type IA

Nominal Size or Basic Screw Dia.		1/4 in

Nominal Size or Basic Screw Dia. (Decimal)		0.2500 in

Ref. Recess Dia. (M)		0.198 in

Ref. Recess Depth (T)		0.127 in

Ref. Recess Width (N)		0.041 in

Driver Size		2

Max. Recess Penetration Gaging Depth		0.122 in

Min. Recess Penetration Gaging Depth		0.104 in

Codes and Standards

Codes and Standards		Abstract of ASME B18.6.4 1998

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Item # item-2834, Type IA Cross Recess Dimensions for Flat Countersunk Trim Head Tapping Screw, with 0.198" Recess Dia.