TEK Screws Through (3) Layers Of Sheet Stock
TEK Screws Through (3) Layers Of Sheet Stock
(OP)
Designing an X-Brace Shear Wall for a CFS stud penthouse with narrow endwalls. One endwall has a door in it!
Lateral load must transfer through top trak to gusset to diagonal X-Strap.
Are TEK screws effective through (3) layers of (16 gage) sheet stock?
Provided I have (3) thread pitches beyond grip, for length, can I still use 14 tpi rather than 24 tpi?
Below, the first snip is from Clark-Dietrich. The second snip my actual situation with a rather steep strap angle. The number a screws in second snip is preliminary.
I'd prefer to design each transferring element with only (2) layers, but, i don't know, at this time, if i can do it?
Thank you!

Lateral load must transfer through top trak to gusset to diagonal X-Strap.
Are TEK screws effective through (3) layers of (16 gage) sheet stock?
Provided I have (3) thread pitches beyond grip, for length, can I still use 14 tpi rather than 24 tpi?
Below, the first snip is from Clark-Dietrich. The second snip my actual situation with a rather steep strap angle. The number a screws in second snip is preliminary.
I'd prefer to design each transferring element with only (2) layers, but, i don't know, at this time, if i can do it?
Thank you!







RE: TEK Screws Through (3) Layers Of Sheet Stock
A #10Tek3 has 0.175" drill and tap capacity. 3 Layers of 16ga = 3 x .054" = .162". In reality, it may be thicker as .054 is the design thickness and not the actual thickness. Plus you will have some gaps between the members. A #12Tek3 has a .210" drill and tap capacity so it will might do the trick.
RE: TEK Screws Through (3) Layers Of Sheet Stock
RE: TEK Screws Through (3) Layers Of Sheet Stock
On another note:
Per AISI 213 - Lateral Design, the chord stud design needs to consider joint flexibility and end moments when the wall's height to width ratio exceeds 2:1.
RE: TEK Screws Through (3) Layers Of Sheet Stock
RE: TEK Screws Through (3) Layers Of Sheet Stock
RE: TEK Screws Through (3) Layers Of Sheet Stock