Nuts & Bolts vs Thread pitch gauge for "metric screw sizes"
Nuts & Bolts
Quick reference for screw dimensions and drill sizes
Thread pitch gauge
Find the specifications of thread pitch for screws, nuts, bolts and pipes.
Rank
7
For keyword
Rank
3
English (United States)Quick reference for screw dimensions and drill sizes
Find the specifications of thread pitch for screws, nuts, bolts and pipes.
Nuts & Bolts wins on readability: screenshots 2 and 3 label "Tap Drill" and "Clearance Hole" beside dimensioned head drawings, while Thread pitch gauge's rows of tpi zigzags assume the reader already knows the term. Thread pitch gauge counters with screenshot 3's caliper-on-cork photo and a menu naming "Metric Thread Pitches" outright, a metric cue Nuts & Bolts never shows despite covering M1.4 to M24. Neither listing surfaces any visible trust cue.
Scanned screenshots4 a · 4 b
Only the first 4 screenshots from each side are sent to the AI. These are what users see in App Store and Google Play search results, so they carry most of the conversion weight.
App A
App B
Value Proposition
TiedShort description "Quick reference for screw dimensions and drill sizes" matches the search, but screenshots 2 and 3 display only inch sizes #0 and 1/4.
Title promises a measuring gauge rather than a size chart, though screenshot 4's menu lists "Metric Thread Pitches" and "Screw Sizes" explicitly.
Clarity
A leadsLabelled fields "Screw Size", "Tap Drill" and the dimensioned head drawings on screenshots 2 and 3 make the lookup function readable immediately.
Screenshot 1's grid of "7 tpi" to "40 tpi" waveforms needs prior knowledge; the calibrate and hamburger icons carry no explanatory caption.
Emotional Hook
B leadsAll four screenshots are unframed app UI, and screenshot 4 is an "A botnerd app ©2022" dialog rather than a use moment.
Screenshot 3's photo of a caliper and bolt on a cork workbench sets a bench-work mood, but no outcome copy accompanies it.
Trust Signals
TiedNo download count, testimonial, or badge appears in any screenshot; screenshot 4 carries only a developer copyright dialog.
Only a "SMART TOOLS" brand watermark on screenshot 3; no user counts, testimonials, or reliability badges are surfaced visually.
Reviews of Nuts & Bolts cluster around three recurring issues: missing nut dimensions despite the title, thin coverage of metric and fine-pitch sizes, and uncertainty about what the free version contains versus pro, with several readers noting 'Most lookups require pro version'. Reviews of Thread pitch gauge are mostly positive, praising on-screen accuracy after calibration and usefulness away from a toolbox, with smaller recurring complaints about missing large thread sizes, ads, and a first-run learning curve. Both apps are praised as quick fastener references, but Nuts & Bolts draws far more comments about missing data while Thread pitch gauge draws comments about discoverability.
App A
Pain points
Nut dimensions absent despite the name
MediumGaps in metric and fine-pitch sizes
MediumUnclear free versus pro contents
MediumStrengths
Faster than a printed chart
MediumValued for machine design and mechanics work
MediumClear layout of the specification data
LowApp B
Pain points
Large thread sizes not covered
MediumFirst-run learning curve
MediumAds interfering with the gauge screen
LowStrengths
Works when tools are not nearby
MediumAccurate on-screen pitch gauge
MediumSimple and uncluttered design
MediumNuts & Bolts positions itself as a lookup table, promising screw diameters, screw head dimensions, tap drill sizes, and clearance holes across a stated range of #0 to 1" and M1.4 to M24. Thread pitch gauge positions itself as a measuring instrument, turning the phone screen into a calibrated gauge for a fastener already in hand. For the query "metric screw sizes" the two answer different questions: one tells a user what a known size should be, the other tells them what an unknown thread is.
App A
Positioning
Fastener reference table
Target audience
Workshop and shop users who know the size
Value promise
Look up screw, drill and clearance dimensions across metric and imperial
Tone
plain, feature-focused, utilitarian
App B
Positioning
On-screen measuring instrument
Target audience
People holding an unidentified screw, nut or pipe
Value promise
Measure thread pitch on a pre-calibrated screen instead of a ruler
Tone
conversational, problem-then-solution, tool-kit branded
Gap
Nuts & Bolts leads with stored reference data (tap drill sizes, clearance holes, a named M1.4 to M24 range), while Thread pitch gauge leads with live measurement (measure thread on your screen, screen width pre-calibrated).
Opportunity
Searchers typing "metric screw sizes" usually already have a designation and want the matching numbers, which is exactly the job Nuts & Bolts describes and the one a gauge cannot answer without the physical part present.
Risk
The title "Nuts & Bolts" carries no size, metric or screw vocabulary, so all query relevance rests on the short description, and the PRO head-type list appears before any credibility signal about the data itself. A user comparing free options may read the listing as a partial table rather than a complete metric reference.
Strategic advantage
The explicit coverage range, #0 to 1" plus M1.4 to M24, is a verifiable completeness claim that a measurement app cannot make; it speaks directly to users mixing metric and imperial hardware who need one source rather than two.
Missed opportunity
Neither listing names a user or a work context: no machinist, bike mechanic, 3D-printing or maintenance framing, and neither claims offline bench use despite both being reference tools consulted where signal is poor.
App A
42
Nuts & Bolts
Behind
B wins
App B
58
Thread pitch gauge
Strong lead
For metric screw sizes, Thread pitch gauge sits at rank 3 and Nuts & Bolts at 7, and that order looks defensible rather than accidental: the searched vocabulary appears in Thread pitch gauge's listing and in a menu naming Metric Thread Pitches, while Nuts & Bolts shows none of it. Nuts & Bolts holds the deeper reference set, but almost none of that depth is visible at the moment of the query.
Why it wins
Thread pitch gauge answers the query in its own words and backs it with reviews that praise on-screen accuracy after calibration, with complaints centred on discoverability rather than the data itself. Nuts & Bolts draws the opposite pattern, repeated reader notes about missing nut dimensions and thin fine-pitch coverage, which undercuts a listing that ranks on reference depth.
Biggest opportunity
Nuts & Bolts owns the one claim a measuring tool cannot make, a stated M1.4 to M24 and #0 to 1 inch range, yet neither its title nor its short description carries metric screw sizes or the word metric anywhere for a searcher to see.
Next priority
The single test worth running is a short description that leads with coverage for metric screw sizes, such as Metric screw sizes M1.4-M24, imperial, tap drill and clearance holes (68 characters, inside the 80 limit). Pair it with the nut dimensions reviewers keep asking for, so the depth claim holds up once a user is inside the app.
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