Machine screws are used with nuts or directly into a threaded receptacle to fasten metal parts together. Measured from the underside of the head to the tip of the screw to obtain fastener length. If nuts are needed, use with nuts of the same finish and threading for proper fit. Stainless steel machine screw assortment kit Quantity: 79 pcs For general applications Pack includes machine screws and slotted driver bit Comes with a variety of sizes Head Style: Round Head Combo Stainless steel finish Condition: New Contents: Round Head Combo Screws - #6-32 x 1": 12 pcs Round Head Combo Screws - #8-32 x 1/2": 16 pcs Round Head Combo Screws - #8-32 x 3/4": 14 pcs Round Head Combo Screws - #8-32 x 1-1/2": 8 pcs Round Head Combo Screws - #8-32 x 2": 6 pcs Round Head Combo Screws - #10-24 x 1": 10 pcs Round Head Combo Screws - 1/4" x 1": 7 pcs Round Head Combo Screws - 1/4" x 1-1/2": 5 pcs FREE Slotted Driver Bit 1 pc