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About Tapping Screws
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Compare drilling, pointed, thread-forming, and thread-cutting tips to find the best choice for your material.
Stainless Steel Phillips Flat Head Screws for Sheet Metal
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These corrosion-resistant screws fasten trim, brackets, and other objects with countersunk holes to sheet metal. The head is flat on top and beveled underneath to sit flush with surfaces. Screws have a pointed tip that starts a hole in sheets up to 0.025" thick, but for thicker material you’ll need to drill first. The Phillips drive handles enough torque to keep drivers from slipping.
Length is measured from the top of the head.
18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
Head | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Lg. | Dia. | Ht. | Tapping Screw Type | Drive Size | Approx. Threads per In. | Countersink Angle | Flat Head Profile | Drill Bit Size | Specs. Met | Pkg. Qty. | Pkg. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
18-8 Stainless Steel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
No. 4 Screw Size | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 7/8" | 0.212" | 0.067" | AB | No. 1 | 24 | 82° | Standard | 44 Ga. | ASME B18.6.4 | 50 | 90065A221 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
No. 8 Screw Size | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2 1/4" | 0.312" | 0.1" | A | No. 2 | 15 | 82° | Standard | 29 Ga. | ASME B18.6.4 | 25 | 90065A222 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
No. 10 Screw Size | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2 1/4" | 0.362" | 0.116" | A | No. 2 | 12 | 82° | Standard | 21 Ga. | ASME B18.6.4 | 25 | 90065A223 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
No. 12 Screw Size | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2 1/4" | 0.412" | 0.132" | A | No. 3 | 11 | 82° | Standard | 3/16" | ASME B18.6.4 | 10 | 90065A224 | 0000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
No. 14 Screw Size | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2 1/4" | 0.462" | 0.148" | A | No. 3 | 10 | 82° | Standard | 5.5 mm | ASME B18.6.4 | 10 | 90065A225 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
