Simpson Strong-Tie Self-Drilling Hex-Washer Head Screw, Type 316 Stainless

Use this stainless steel screw for fastening aluminum and fiberglass (but not for steel). Features include an indented hex-washer head, tapping screw thread and #3 drill point.

• Indented hex-washer head
• Tapping screw thread
• #3 drill point penetrates steel without pre-drilling

Specifications (all models)

• Fastener Type: Hand-Drive Screw
• Screw Size: #12
• Head Type: Hex Washer Head
• Drive Type: 5/16 in. Hex
• Point Type: Drill Point
• Thread Type: Tapping Threads
• Threads per Inch: 14
• Material: Type 316 Stainless Steel
• Application: Fastening for Cold-Formed Steel / Cold-Formed Steel

Available options (see each model for exact values)

• Fastener Callout Size: #12 x 1 in., #12 x 1-1/2 in., #12 x 2 in., #12 x 2-1/2 in., #12 x 3 in., #12 x 4 in.
• Length (in.): 1, 1 1/2, 2, 2 1/2, 3, 4
• Length (mm): 25, 38, 51, 64, 76
• Max. Grip Length (in.): 0.442, 0.942, 1.442, 1.942, 2.442, 3.413