Screw & Bolt Assortment Sets: what Claude and GPT would buy

Two AI models chose on their own, with no web access. Nobody tested these products: this is what each one says, and how to check it.

They disagree: Claude chooses Sutemribor and GPT chooses JACKSON PALMER

In Industrial & Scientific, Claude and GPT choose the same brand in 52 of 107 categories.

Claude Opus 5.5 · October 28, 2026

Sutemribor (brand)

Sutemribor's metric hex socket cap screw kits cover the M2 to M5 sizes used in 3D printers, electronics and hobby builds, with nuts and washers in a labelled case.

Not for: Anyone working with inch fasteners or needing wood screws or large structural bolts.

GPT 6.1 Sol · November 10, 2026

JACKSON PALMER Hardware Assortment Kit (line)

A broad selection of screws, bolts, nuts, and washers in organized compartments makes it useful for general repairs and workshop projects.

Not for: Structural connections, safety-critical assemblies, or jobs requiring certified fastener grades.

Check before you buy

Head and drive type. Socket cap (hex key) heads suit tight spaces and high torque. Button heads are low profile. Flat (countersunk) heads need a countersunk hole. Phillips pan heads are for light duty. The head determines whether the screw fits and whether you can tighten it without stripping.
Thread standard and pitch. Match metric coarse pitch or UNC/UNF to your tapped holes or nuts. The wrong pitch strips the tapped hole.
Material and class. Use 304/18-8 stainless for corrosion resistance. Use black-oxide alloy steel at property class 10.9 or 12.9 for strength. Alloy steel rusts without protection, and stainless is weaker and can gall.
Length increments. The kit should step lengths finely in the small diameters you use most. A screw that is too long bottoms out, and one that is too short engages too few threads.
Matching hex keys and nuts. Check that the kit includes the matching hex key sizes and nuts. Without the right driver and nuts, part of the kit is unusable.

Where to find Sutemribor

Walmart
eBay

Shops seen in search results on November 5, 2026. A shop missing here may sell it too. Nothing was checked by a person.

Brands that matter

Sutemribor: Known for small metric socket cap screw kits.
uxcell: Wide range of screw sizes in bulk packs. Good for restocking a single size.
Hillman: Inch-size machine screw assortments.

What to avoid

Unrated low-cost alloy screws used where 12.9 strength is required.
Using hex keys that are rounded or the wrong size.
Kits that do not state thread pitch.

Questions

Screw or bolt, what's the difference in these kits?

In practice, both are usually machine-threaded fasteners. What matters is the head type, thread and material, not the name.

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