Self Tapping Screws

Tapping Screw Thread Sizes
4-40	6-32	8-32	10-24	10-32
1/4"-20	5-16"-18	3-8"-16	1/2"-13
Tapping Screw by Lengths
1.00"	1.25"	1.50"	1.75"	2.00"
2.25"	2.50"	3.00"	3.875"
Tapping Screw by Diameter
#2	#4	#6	#7	#8
#10	#12	#14
Tapping Screw by Material Type
Black Finish		Black Oxide	18-8 Stainless Steel
Chrome Plated	Nickel Plated Brass		Zinc Plated Steel
Tapping Screw by Head Type
Pin in Head Socket		Pin in Head Torx		Truss Head
Hex Head-Unslotted		Hex Socket Head	Sealing Hex Head with Washer
Self Piercing Hex Serrated Washer Head		Oval Head Phillips	Oval Head Phillips - Countersunk Washer
Pan Head Combination Drive		Pan Head Drilled Spanner		Pan Head Slotted
Pan Washer Head Square Drive		Pan Head Square Drive		Pan Head Tri Wing
Pan Head Sheet Metal	Pan Head Wide Washer		Pan Head Torx Drive
Flat Head Phillips			Flat Head Square Drive
Flat Head Pin in Torx			Round Head Phillips