Thrrread Go

Thrrread Go is a fast engineering reference for thread dimensions, tap-drill sizes, clearance holes and fastener head dimensions. It is designed for engineers, machinists, maintenance teams, students and anyone who needs to check common fastener data without digging through multiple tables.

INCLUDED REFERENCES • Metric coarse and fine threads • Unified inch threads: UNC, UNF and UNEF • Whitworth W threads • Pipe threads: R, Rc, Rp, G and NPT • Pilot-hole references for thread inserts • Reference pilot holes for tapping and wood screws • Head dimensions for hex, socket head, low head, button, countersunk, pan and set screws • Reference dimensions for hex nuts, plain washers and counterbores

CORE FEATURES • Search by standard, nominal size, pitch or legacy designation • Find likely thread matches from measured diameter and pitch/TPI • Browse design applications and compatible thread combinations • Compare two threads or two bolts, including dimensions and strength classes • Review metric property classes and SAE inch-bolt grades in their stated scope • Select comparison candidates from recent items and favorites • Switch between mm and inch display • Calculator with sin, cos, tan, log, square root and basic arithmetic • Light and dark appearance • Japanese, English and German interfaces; other device languages use English

No account is required. Favorites, browsing history and settings are stored on the device and can be deleted from Settings. Core search and reference features work offline. The free and referral-code editions show non-personalized Google AdMob banners outside the Calculator; the one-time purchase removes banners. The ad SDK may process device information for ad delivery, fraud prevention and delivery measurement. Optional Amazon product-search links may also be available.

ENGINEERING NOTICE Thrrread Go is a reference aid, not engineering approval, product certification or professional advice. Standards, materials, coatings, tolerances, tools and operating conditions can change the correct value. Before design, machining, procurement, inspection or assembly, verify the current official standard, drawing, actual part and supplier documentation. Data and results are provided as is. Mandatory consumer rights and liability that cannot legally be excluded remain unaffected. Full terms are available on the support website.