🔩 Fully-Threaded STS Screws (Assy / Rothoblaas), 45° Inclined Shear Capacity Lbs

Timber Self-Tapping Screw (STS) Calculator

Size high-strength fully-threaded Self-Tapping Timber Screws (STS) for CLT panel-to-panel and beam-to-column connections: calculate allowable withdrawal resistance (lbs based on timber specific gravity) and 45° inclined shear tension capacity (over 6,000 lbs per screw pair), eliminate heavy steel bracket plates, and timber hardware margins.

1. Project & Operating Inputs

Total Structural STS Screws Installed (Screw Count e.g. 14,000 Screws)

Screw Length (Inches e.g. 10.0" Fully-Threaded STS)

Customer Bid Price for Supplied & Torqued Screws ($ / Screw e.g. $8.50)

OEM Fully-Threaded Screws, High-Torque Driver Bits & Labor ($ / Screw)

2. Financial Breakdown & Yield

FULLY-THREADED STS TIMBER SCREWS

Turnkey Fastener Package Profit

Timber Hardware Supply Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost