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TSA-20, Type A Self Tapping Screws

*Threads per inch differ on short lengths for most sizes. (Flat and oval heads in these lengths and shorter will be furnished as standard with undercut heads.)
Nom. Size: 20
Threads Per Inch - Regular Lenghts: 9
Threads Per Inch - Short Lengths (Flat & Oval Head): 13/16
Threads Per Inch - Short Lengths (All Others - No c's'k): 11/16
Threads Per Inch: 12
Min. Major Diamter (D): 0.327
Max. Minor Diameter (d): 0.234
Min. Minor Diameter (d): 0.226
Point Selection: Rolled Point|Pinch Point (Gimlet)|Cut Points|Nail Point (Pinched)|Round Point|Dog Point|Header Point|Cupped Point|Coned Point
Head Selection: Fillister Head|Spanner Head|Washer Head|Flat Head (100º Countersunk)|Binding Head|One Way Head|Flat and Oval Heads (Undercut)|Round Head|Oval Head|Hexagon Head (finished)|Flat Head|Hexagon Head (Trimmed)|Square Head (Trimmed)|Indented Hexagon Washer Head|
Screw Length (Min 1/16 - Max 6")": <>
Diameter of Head: 1/16|3/8|1/8|5/8|1/2|7/8|3/4|1
Quantity required:
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