Simpson Strong-Tie Fiber-Cement Screw, Wafer Head

Screws are an integral part of many projects, and Simpson Strong-Tie® screws come in a variety of styles tailored to the requirements of every project type. The fiber-cement screw is ideal for binding fiber-cement siding to stressed-skin panels or lap siding to wood. It features a wafer head with self-countersinking nibs, a type-17 point for fast starts and full-length coarse threading.

• Wafer head with self-countersinking nibs
• Type-17 point for fast starts
• Full-length coarse thread (to within 5/16" of head)
• Use 1 1/4" screws to attach fiber-cement siding to stressed-skin panels
• Use 1 5/8" screws to blind-fasten fiber-cement siding to wood
• #2 square drive (replacement bit model BIT2S-2-R2)

Specifications (all models)

• Fastener Type: Hand-Drive Screw
• Screw Size: #8
• Head Type: Wafer Head
• Head Diameter (in.): 0.395
• Drive Type: #2 Square
• Point Type: Type-17 Point
• Thread Type: Coarse Threads
• Material: Type 316 Stainless Steel
• Application: Underlayment / Backer board / Fastening Fiber-Cement Siding

Available options (see each model for exact values)

• Fastener Callout Size: #8 x 1-1/4 in., #8 x 1-5/8 in., #8 x 2-1/4 in.
• Length (in.): 1 1/4, 1 5/8, 2 1/4
• Length (mm): 32, 41, 57
• Packaging Type: Clamshell, Tub