Lag Bolts: Difference between revisions
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=Suck-In= | |||
*To suck in one member against an attachment surface, predrill the member the same size as lag bolt size. The surface is predrilled with a smaller hole. This way, the bolt slides in the hole in the member, sucking it in to the attachment surface. | |||
=Predrill Hole Size= | =Predrill Hole Size= | ||
*For 1/2" bolts- 1/4". Softwood assumed. | *For 1/2" bolts- 1/4". Softwood assumed. | ||
*3/8" - 11/64" | *3/8" bolts - 11/64" predrill | ||
=Pull-Out= | =Pull-Out= | ||
*Strengh is 450 lb per inch of thread in southern pine - [https://www.zillarac.com/Portals/0/Documents/PDF/Screw%20Pull-out.pdf] | *Strengh is 450 lb per inch of thread in southern pine - [https://www.zillarac.com/Portals/0/Documents/PDF/Screw%20Pull-out.pdf] | ||
Revision as of 03:43, 2 March 2022
Suck-In
- To suck in one member against an attachment surface, predrill the member the same size as lag bolt size. The surface is predrilled with a smaller hole. This way, the bolt slides in the hole in the member, sucking it in to the attachment surface.
Predrill Hole Size
- For 1/2" bolts- 1/4". Softwood assumed.
- 3/8" bolts - 11/64" predrill
Pull-Out
- Strengh is 450 lb per inch of thread in southern pine - [1]