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Insert Nuts Type D M6 x 20mm 50 Pack (61859)

Provides a strong fixing in wood and man-made boards. Ideal for flat-pack furniture.

  • Type D for a Flush Fitting
  • M6 Thread for use with Joint Connector Bolts
  • Self-Tapping

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1 - 4 £3.99
5 + £3.59
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Insert Nuts Type D M6 x 20mm 50 Pack is rated 4.5 out of 5 by 10.
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Rated 4 out of 5 by from Hole sizes Used these in a grid pattern on the underside of the board to hold the clamps on a mdf sacrificial board on a CNC machine. I recessed with a 12.5mm dia. by 1.5mm deephole. Lead in hole of 10mm by 4mm deep to ensure an easy start when screwing them in and the actual through holes for the insert of 8.2mm. Perfect fit and a very useful way of easily securing clamps to the top of the board.
Date published: 2016-07-31
Rated 5 out of 5 by from Stronger than you think I used the 20mm insert nut (type D) in conjunction with 50nn joint connection bolts to attach the sides of a bed I was making, I wanted them to be a strong assemble but able to pull apart should the bed require moving its a large solid wood bed and the design was causing fixing issue I used 5 of these at each corner (3 would have done) into soft wood I drilled a 7:5mm hole but in harder material (like resin or in a knot) I would go to 8mm hole...I did snap the top off one trying to go into a knot ... They are much stronger than screws alone
Date published: 2016-06-02
Rated 3 out of 5 by from Good but exercise care Good solution for strong and repeat assembly/dismantling in wood. As others have said, the correct size of hole needs to be drilled first. But even so, the head into which the Allen key fits shears easily when screwing these into hardwood. Once broken, the remnant is fiddly to remove!
Date published: 2016-03-01
Rated 5 out of 5 by from Just the job ! An excellent method of fixing into my new work tops ( self fitted) . Work tops were Apollo slab tech solid surface , and needed to be securely fastened, and with an under sink mount I needed the reliability and faith that the sink would be held in place when full of water and washing up. The fixings were screwed into the holes I drilled with then the M6 bolts neatly screwing in holding the brackets. A great fixing for these new style work tops.
Date published: 2016-02-03
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1 Question  3 Answers

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I'm restoring an old park bench, the slates are made from teak, the insert nuts go into the end grain of the slates, and so far seem to be splitting the wood, rather than cutting their own thread. This was how the bench was constructed originally.
Thanks. Nick
14 Jan 2016
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Swindon
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Answer: 
Depends on the hardness of the wood. 8mm for softwood, possibly 8.5 or even 9mm for hardwood. Try a couple of test holes in a piece of scrap wood.
31 Jul 2016
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Derbyshire
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Answer: 
Hi. Thanks for your answer, but I was referring to the hole that the nut goes into, the nut takes a 6mm bolt. The shank of the nut is approximately 7.5mm going up to 8.5mm.
Thanks.
15 Jan 2016
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Swindon
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Answer: 
Hello Drnick66,

In order to install these insert nuts you will need to drill a 6mm hole.
15 Jan 2016
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Yeovil
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  • 2016-11-18 T05:38:57.316-06:00
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Specification
Bolt Size M6
Manufacturer Guarantee 1 Year Guarantee
Pack Size 50
Pieces in Pack/Case 50
Product Length 20 mm
Product Type Insert Nuts Type D