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Product Information

External knife threads provide superior holding power in hard and soft woods, particle board and all wood products. Use wherever field assembly or disassembly could lead to thread erosion or stripping. The long pilot ensures straight driving into a drilled hole. Install with screw driver, bolt and nut, tapping head or driving tool.

Insert Part No.	Drive Tool Part No.	Internal Thread	Length Overall	Major Diameter External Thread	Hole Size
42378	N/A	4-40	0.375	0.35	1/4
42379	42309	6-32	0.375	0.35	1/4
42380	42386	8-32	0.375	0.35	1/4
42381	42387	10-24	0.500	0.453	3/8
42382	42387	10-32	0.500	0.453	3/8
42383	42388	1/4-20	0.500	0.453	3/8
42302	42388	1/4-28	0.500	0.453	3/8
42384	42389	5/16-18	0.625	0.600	1/2
42303	42389	5/16-24	0.625	0.600	1/2
42385	42399	3/8-16	0.625	0.600	1/2
42304	42399	3/8-24	0.625	0.600	1/2