3-Prong T-Nuts, Straight Barrel: Technical Information | AFT Fasteners

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3-Prong T-Nuts, Straight Barrel: Technical Information

 3-Prong T-Nuts, Straight Barrel Drawing

3-Prong T-Nuts, Straight Barrel
Thread
Size
(H)
Barrel
Height

(G)
Flange
Diam.
(F)
Barrel
Diam.

(A)
Prong Height
 
(T)
Material
Thick-
ness

Drill
Size

  Thread
Size
(H)
Barrel
Height

(G)
Flange
Diam.

(F)
Barrel
Diam.
(A)
Prong
Height

(T)
Material
Thick-
ness
Drill
Size
4-40 1/4 23/64 .141 3/32 .031 9/64 1/4-20 3/8 3 .305 5/16 .047 5/16
6-32 1/4 1/2 .188 1/8 .035 13/64 1/4-20 7/16 3/4  .305  7/32-1/4 .047 5/16
8-32 1/4 23/32 .208 7/32 .030 7/32 1/4-20 1/2 3/4 .305 7/32  .047 5/16
8-32 5/16 3/4 .208 1/4 .035 7/32 5/16-18 9/16   7/8   .360  9/32  .047 3/8
10-24 1/4 3/4 .243 5/32 .039 1/4 5/16-18 5/16   7/8   .390  1/4  .063 25/64
10-24 5/16 3/4 .243 7/32 .040 1/4 5/16-18 3/8   7/8   .390  1/4  .063 13/32
10-24 7/16 3/4 .243 5/16 .040 1/4 5/16-18 7/16   7/8  .360 1/4  .063 3/8
10-32 5/16 3/4 .243 7/32 .040 1/4 5/16-18 1/2   7/8  .390 5/16  .063 25/64
10-32 3/8 3/4 .243 1/4 .040 1/4 3/8-16 5/8   1   .420  9/32  .063 27/64
10-32 7/16 3/4 .243 5/16 .040 1/4 3/8-16 7/16   1   .440  11/32  .063 29/64
1/4-20 1/4 3/4 .305 3/16 .047 5/16 3/8-16 5/8  1 .440 9/32 .063 29/64
1/4-20 5/16 3/4 .305 7/32 .047 5/16  
Description

Internally threaded barrelshaped fasteners created entirely with flat foundation with 
projections of the prongtype extending perpendicularly from the base aside the barrel.

Applications/Advantages Used to fasten metal to timber, particle board or plastic goods. The 3-prong
style is used to minimize the splitting of the mating surface in harder products.
Material

C1004-10 low-carbon steel.

Plating

See table above for more information.



 

NOTE: For Tnut size, there is no single standard. These values are provided as a guide; there may be deviations from these requirements.