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"....My friend and I have been building guitars in my high school woodworking class over the course of this school year. This will be the last order we place for this project, and I wanted to say that we have found your website, products, and customer service to be extremely useful. When my friend encountered some issues with bending the sides he purchased, he emailed your company to ask for advice, and, very quickly, received very helpful advice."

Bolt-On Neck Inserts

 

 

TRUSSRODBoltOnNeckInsertsTNI2at500
TNI2
TRUSSRODBoltOnNeckInsertsUkuleleTNIU2at500
TNIU2 for ukulele neck
Our threaded brass inserts and Allen-head bolts make neck alignment, attachment and removal a breeze. Many of the leading manufacturers and hand builders attach necks to bodies with this system. The machining of the neck is greatly simplified, especially with the neck flush-mounted to the body without the complication of either a dovetail or mortise and tenon joint. The inserts have an aggressive thread to hold in the end grain of the flush-mounted heel or tenon.
 
The TNI2 is for use with acoustic guitars, the TNIU is designed for soprano ukuleles and the TNIU2 for anything larger than a soprano ukulele.

Each TNI2 package contains
:
  • 2 brass inserts - 1/2" long, 1/4" internal thread,
    7/16" O.D., coarse thread
  • 2 bolts (1/4-20, 1 1/4, Allen head)
  • 2 conical Belleville washers - enough for one neck (5/8" O.D., 1/4" I.D.). The Belleville washers compress when the nut is tightened and continue exerting tension, reducing the possibility of the bolt ever loosening.
  • 1 hex nut for driving the inserts.
Each TNIU package contains:
  • 1 brass insert - 3/8" long, #8 internal thread,
    .328" O.D., coarse thread
  • 1 bolt (8-32, 1 1/8, Allen head)
  • 1 flat washer - #8 size, 7/16" O.D.
  • 1 hex nut for driving the inserts.
Each TNIU2 package contains:
  • 2 brass inserts - 3/8" long, #8 internal thread,
    .328" O.D., coarse thread
  • 2 bolts (8-32, 1 1/8, Allen head)
  • 2 flat washers - #8 size, 7/16" O.D.
  • 1 hex nut for driving the inserts.

INSTALLATION INSTRUCTIONS

TRUSSRODSBoltOnCDN500

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For those preferring to use the barrel nut method
we offer barrel nuts and connector bolts (CDN).

  • Barrel nuts - 1/4-20 thread, 10mm/.393" diameter, 20mm/.787" length,
    center bored (not offset)
  • Bolts - 1/4-20 thread, 20mm/.787" thread length, 30mm/1.181" bolt length

SKU Product Name In Stock Each 4+  
TNI2 Brass inserts and bolts for neck installation (set of 2) Yes $9.87 $8.82
TNIU2 Brass inserts and bolts for ukulele neck installation (set of 2) Yes $7.88 $7.01
TNIU Brass inserts and bolts for ukulele neck installation (1 only) Yes $5.51 $4.90
CDN Barrel bolt and nut for neck installation (set of 2) Yes $2.89 $2.56