Screw Inserts in Magnolia

  • Advertise with us

« back to Woodworking Skill Share forum

Forum topic by Olaf Gradin posted 12-15-2007 10:20 PM 1525 views 0 times favorited 3 replies Add to Favorites Watch
View Olaf Gradin's profile

Olaf Gradin

73 posts in 5333 days

12-15-2007 10:20 PM

Topic tags/keywords: screw insert knock down brass magnolia

I’ve been working on a miter jig for the table saw and I’m having some trouble with screws in magnolia. The wood is dense, but I wouldn’t think any more so than oak. I have 1/4” brass screw inserts that I can’t get to seat nicely into this wood. I’ve increased the whole diameter in 32nds and 64ths to 1/4” now and I’m considering going up from there.

The problem has been that the wood puckers at the entry point as I apply pressure from the screw insert. The brass Clark’s head fitting begins to shear off towards the end of the insertion, so I’m already guessing I should probably move to steel. Possibly the saw-tooth steel variety.

Should I over-size the hole to accommodate the threads? I was afraid that that would substantially weaken the ability of the screw insert to hold firmly in the wood.

-- It takes a viking to raze a village. &mdash Blog'r:

3 replies so far

View rjack's profile


110 posts in 5349 days

#1 posted 12-15-2007 10:25 PM

You might try waxing the screw threads. This helps reduce friction and makes it easier to drive the screw or screw insert.

-- Roger - Havertown, Pennsylvania

View Thuan's profile


203 posts in 5311 days

#2 posted 12-15-2007 11:07 PM

Actually, it doesn’t have to look nice because the end result would be covered by the mating piece. So, chamfer the hole a bit. This takes are of the pucker. Then screw a 1/4 bolt into the screw insert as an installation tool, this lets you have a place to hold it nice and plumb while you gently tap it in. If you have a drill press, attach a 1/4” threaded rod and use the drill press lever as a press to get the insert plumb upon entry. Brass is soft, so the flanges should bend to fit in the hole.

-- Thuan

View Don Niermann  's profile

Don Niermann

219 posts in 5466 days

#3 posted 12-16-2007 04:14 AM

Use steel screws to create the holes then the brass

-- WOOD/DON ( has the right to ones opinion but not the right to ones own facts...)

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics