If your project needs super strong joints, steel cross dowels and bolts are the way to go. We stock cross dowels with 10-24, 1/4 -20 and 3/8-16 through holes. We also stock Grade 5 Bolts to go along with them.
Our new 3/8-16 Cross Dowels are ideal for workbench frames and trestle tables. They can withstand high torque values and provide extremely secure right angle joints. A slot in end simplifies alignment with bolt.
Cross dowel dimensions are D = Diameter of drill bit, L = Length of Cross Dowel. Actual diameter is slightly less then drill size to aid in alignment with bolt hole.
Bolt Size
Cross Dowel
Diameter (Actual)
Cross Dowel
Length
10-24
13/32 (.393)
1/2
1/4-20
13/32 (.394)
5/8
1/4-20
13/32 (.394)
1-3/16
5/16-18
7/16 (.472)
1-3/16
3/8-16
5/8 (.625)
1
Heavy duty cross dowels great for the most rugged jobs
10-24 x 1/2 Cross Dowel with 1-3/4 full thread screw for attaching 1/2" to 1/2 or thicker lumber.
1/4-20 x 5/8 Cross Dowel with 2 bolt for attaching 3/4" to 3/4" or thicker lumber.
1/4-20 x 1-3/16 Cross Dowel with 3 full thread bolt for attaching 1-1/2" to 1-1/4 or thicker lumber.
5/16-18 x 1-3/6 Cross Dowel with 2 full thread bolt for attaching 3/4" to 1-1/4 or thicker lumber.
3/8-16 x 1 Cross Dowel with 2 full thread bolt for attaching 3/4" to 1-1/4 or thicker lumber.
3/8-16 x 1 Cross Dowel with 3-1/2 full thread bolt for attaching 1-1/2" to 1 or thicker lumber. Use 2 bolt for attaching 3/4" to 1-1/4 or thicker lumber.