Product Details

Wafer-Head Construction Screw

Product Details

Build every project faster, easier and stronger than ever with the Wafer-Head Construction screw from Simpson Strong-Tie. Featuring a strong pull-through resistance, this versatile fastening solution is ideal for everything from cabinetry to framing to outdoor furniture and other home improvement projects. Its patented SawTooth® point eliminates the need to predrill and saves you time, while the 6-lobe drive recess head makes driving secure and easy. And the Wafer-Head Construction screw's Quik Guard® coating makes it suitable for both interior and exterior applications.

Key Features

Wafer head for strong pull-through resistance
SawTooth point technology for fast starts and easy driving
6-lobe recess for secure driving
Quik Guard coating for interior or exterior use
Available in #8 x 1 1/4", 1 1/2", 2", 2 1/2", 3" lengths
Bit replacement: BIT20T-2-R2

Patent Information

US Patents 9,523,383; 11,181,138

Catalog Pages

Fastener Product Information: C-F-2023 (Fastening Systems), page 83
Fastener Technical Data and Loads: C-F-2023TECHSUP, page 33

Related Literature

Fastening Systems Catalog

C-F-2023

A catalog including new product information as well as any applicable specification and installation instructions for Simpson Strong-Tie® fasteners and Quik Drive® systems.

Catalog

Fastening Systems Technical Guide

C-F-2023TECHSUP

A technical document featuring engineering information for structural fasteners featured in the C-F-2023 Fastening Systems Catalog.

Catalog

Guía técnica de los sistemas de sujeción

C-F-2023TECHSP

Un documento técnico información de ingeniería para los sujetadores estructurales que se incluyen en el C-F-2019SP Catálogo de sistemas de sujeción.

Catalog

Sistemas de sujeción

C-F-2023SP

Catálogo que incluye información sobre productos nuevos y las instrucciones de instalación y especificaciones correspondientes para los sujetadores Simpson Strong-Tie® y los sistemas Quik Drive®.

Catalog

A quick-start,high-strength all-purpose fastener

F-F-WFRCNST22

A product flier outlining features and benefits of the Wafer-Head Construction screw.

Flier

Do More with a Total Crating Solution

S-O-CRATE23

A sales flier promoting Simpson Strong-Tie crating performance solutions and product offerings.

Flier

Product Information Table

Fastener Production Information and Stuff & Things

New products
Model No.	Coating/Material	Screw Size	Length (in.)	Head Diameter (in.)	Drive Type	Head Type	Thread Type	Thread Length (in.)	Point Type	Color	Packaging Qty.
CBT08112MB	Quik Guard® Coating	#8	1 1/2	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	1.00	SawTooth® Point	Tan	4000
CBT08112R100	Quik Guard® Coating	#8	1 1/2	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	1.00	SawTooth® Point	Tan	100
CBT08112R300	Quik Guard® Coating	#8	1 1/2	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	1.00	SawTooth® Point	Tan	300
CBT08114MB	Quik Guard® Coating	#8	1 1/4	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	0.80	SawTooth® Point	Tan	5000
CBT08114R100	Quik Guard® Coating	#8	1 1/4	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	0.80	SawTooth® Point	Tan	100
CBT08114R300	Quik Guard® Coating	#8	1 1/4	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	0.80	SawTooth® Point	Tan	300
CBT08200MB	Quik Guard® Coating	#8	2	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	1.25	SawTooth® Point	Tan	3000
CBT08200R100	Quik Guard® Coating	#8	2	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	1.25	SawTooth® Point	Tan	100
CBT08200R300	Quik Guard® Coating	#8	2	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	1.25	SawTooth® Point	Tan	300
CBT08212MB	Quik Guard® Coating	#8	2 1/2	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	1.25	SawTooth® Point	Tan	1750
CBT08212R200	Quik Guard® Coating	#8	2 1/2	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	1.25	SawTooth® Point	Tan	200
CBT08212R60	Quik Guard® Coating	#8	2 1/2	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	1.25	SawTooth® Point	Tan	60
CBT08300MB	Quik Guard® Coating	#8	3	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	1.50	SawTooth® Point	Tan	1500
CBT08300R200	Quik Guard® Coating	#8	3	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	1.50	SawTooth® Point	Tan	200
CBT08300R50	Quik Guard® Coating	#8	3	0.418	T20 6-Lobe	Wafer Head	Serrated Threads	1.50	SawTooth® Point	Tan	50

Load Tables

Wafer-Head Construction Screw Withdrawal and Pull-Through Resistance

Model No.	Fastener Length (in.)	Thread Length (in.)	Reference Withdrawal Design Value, W (lb./in.)		Reference Pull-through Design Value, (lb.)
			SPF/HF	DFL/SP	Side Member Thickness ≥ 3/4 in.
			SPF/HF	DFL/SP	SPF/HF	DFL/SP
CBT8114	1.25	0.80	62	108	147	194
CBT8112	1.50	1.50
CBT8200	2.00	1.25
CBT8212	2.50	1.25
CBT8300	3.00	1.50

Tabulated allowable design values are shown at the wood load duration factor of C_D = 1.0. Loads maybe be increased for load duration up to C_D = 1.6.
Tabulated reference withdawal design values, W, are in pounds per inch of the thread penetration into the side grain of the main member.
Tabulated reference pull-though design values are the allowable load for the fastener head pull-through for a minimum 3/4" thick side member.
Use the lesser of the withdrawal or pull-through values to determine axial design value.
Screws must be installed normal to the side grain of the wood main member with the screw axis at a 90° angle to the wood fibers.