Best Fastener Calc Apps & Games

244+ iOS apps & games curated and reviewed

4.3 avg rating
20 free apps & games
Updated October 2026

Hague Screw Thread Calculator is the household name in fastener calc, but it's far from the only option. We track 244+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Fastener Calc Apps & Games (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Hague Screw Thread CalculatorHague Screw Thread CalculatorFree4.0★ (5)NoNoMay 2026
2Screw-Designer BasicScrew-Designer BasicFree—NoNoMay 2026
3BelMetricBelMetricFree5.0★ (21)NoNoOct 2026
4Bolt IQ+Bolt IQ+Free4.8★ (5)NoNoOct 2026
5BoltsandNuts.comBoltsandNuts.comFree5.0★ (4)NoNoOct 2026
6Mech EdgeMech EdgeFree—NoNoOct 2026
7International Fastener ExpoInternational Fastener ExpoFree—NoNoOct 2026
8Glove-Fastener NUMGlove-Fastener NUMFree—YesNoMay 2026

Top Picks for Fastener Calc

Hague Screw Thread Calculator screenshot 1
Hague Screw Thread Calculator screenshot 2
Hague Screw Thread Calculator screenshot 3

This engineering tool provides instant access to critical dimensions for various screw thread standards, including Unified, Whitworth, and ISO Metric. It also allows for the creation and calculation of custom thread sizes and pitches, eliminating the need for physical reference books.

BelMetric#3

BelMetric by BEL-METRIC, INC.

Metric Fasteners & Hardware
Worth Considering
🛍️ Shopping
5.0(21 ratings)
Free
BelMetric screenshot 1
BelMetric screenshot 2
BelMetric screenshot 3
BelMetric screenshot 4
BelMetric screenshot 5
BelMetric screenshot 6

Browse and purchase metric fasteners and hardware directly from your mobile device. Access technical drawings, data sheets, and 3D CAD models to ensure you select the correct parts. Streamline your ordering process with custom lists and bulk quote requests.

More Fastener Calc apps to explore

FAQ about Fastener Calc

What are the best fastener calc apps & games for iPhone?
Hague Screw Thread Calculator tops our fastener calc apps & games ranking as of October 2026, with a 4.0-star average from 5 App Store ratings, and it's free to download.
Yes — 20 of the top fastener calc apps & games we rank are free to download, including Hague Screw Thread Calculator and Screw-Designer Basic.
Hague Screw Thread Calculator has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 244+ fastener calc apps & games on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.