Wood Screws

Product Detail

Wood screws are used to fasten wood to wood or attach objects to wood and offer a pleasing, finished appearance. They pull wood pieces together as they are tightened, which can make clamping unnecessary, and can be removed more easily than nails so entire assemblies can be dismantled or fixtures dismounted with relative speed.

                  

	A		H		J		T		M		G	N	Phillips
Size	Head Diameter		Height of Head		Width of Slot		Depth of Slot						Driver
									Diameter		Depth	Width
	Max.	Min.	Max.	Min.	Max.	Min.	Max.	Min.	Max.	Min.	Max.	Min.
2	0.172	147	0.051	0.04	0.031	0.023	0.023	0.015	0.102	0.089	0.063	0.017	1
4	0.225	0.195	0.067	0.055	0.039	0.031	0.03	0.02	0.128	0.115	0.089	0.018	1
5	0.252	0.22	0.075	0.062	0.043	0.035	0.034	0.022	0.154	0.141	0.086	0.027	2
6	0.279	0.244	0.083	0.069	0.048	0.039	0.038	0.024	0.174	0.161	0.106	0.029	2
7*	0.305	0.268	0.091	0.076	0.048	0.039	0.041	0.027	0.182	0.169	0.114	0.03	2
8	0.332	0.292	0.1	0.084	0.054	0.045	0.045	0.029	0.189	0.176	0.121	0.031	2
9*	0.358	0.316	0.108	0.091	0.054	0.045	0.049	0.032	0.258	0.245	0.146	0.034	2
10	0.385	0.34	0.116	0.098	0.06	0.05	0.053	0.034	0.204	0.191	0.136	0.032	2-3*
12	0.438	0.389	0.132	0.112	0.067	0.056	0.06	0.039	0.268	0.255	0.156	0.036	3
14*	0.491	0.437	0.148	0.127	0.075	0.064	0.068	0.044	0.283	0.27	0.171	0.039	3
1/4	0.507	0.452	0.153	0.131	0.075	0.064	0.07	0.046	0.283	0.27	0.171	0.035	3
5/16	0.635	0.568	0.191	0.165	0.084	0.072	0.088	0.058	0.365	0.352	0.216	0.061	4
3/8	0.762	0.685	0.23	0.2	0.094	0.081	0.106	0.07	0.393	0.38	0.245	0.065	4
1/2	0.875	775	0.223	0.198	0.106	0.091	0.103	0.065	0.424	0.411	0.276	0.069	4

Wood Screw Sizing       

















































• Shank Diameter is measured on the smooth portion of the screw above the threads.




Working With Wood Screws - Common Sense Tips

Use soap or wax to lubricate screws in hardwoods.

Keep brass screw heads from twisting off. Use the same size steel screw to thread the wood, then insert the brass screw. Your screwdriver bit is less likely to slip when you use Phillips or Robertson (Square Head) style screws.

Use a drill with an adjustable chuck clutch to avoid stripping screw heads. Drilling pilot holes prevents your wood from splitting, and allows for a tighter joint.