Item #: 78203429Brand: TE-COModel #: 31343L Features and Benefits Knurled head types have a pattern of ridges that allow for easy gripping and tightening by hand. Knurled head types are common in applications requiring frequent fastening and unfastening. Steel is strong and durable but less corrosion resistant than stainless steel. To improve its resistance to corrosion, it may receive additional finishes and coatings. Product Specifications Thumb Screws & Hand Knobs; System of Measurement: Inch ; Thread Size: 3/8-16 ; Head Type: Knurled ; Shoulder Type: Shoulderless ; Tip Type: Swivel Pad ; Material: Steel System of Measurement Inch Thread Size 3/8-16 Head Type Knurled Shoulder Type Shoulderless Tip Type Swivel Pad Material Steel Material Grade C-12L14 Overall Length (Decimal Inch) 3.0475 Finish/Coating Black Oxide Head Diameter (Inch) 1-1/4 Head Height (Inch) 7/16 Thread Standard UNC Tip Diameter (Inch) 9/16 Tip Material Steel Tip Swivel Angle 20.00