Matrelt
45pcs 1/4-20 5 Sizes Countersunk Head Flat Socket Head Cap Screws Assortment Kit with Allen Keys, Black Grade 10.9 Carbon Steel Socket Cap Bolts Flat Countersunk Head Machine Screws
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
Matrelt countersunk head, flat socket head cap screws with a low-profile, Use flat head screws for installation, the surface is aesthetically pleasing and flat, without protruding the screw head, perfect for a variety of applications that require a strong and reliable fastener.High-grade strong and hard carbon steel material provide exceptional strength, Clear and neat threads of these screws make it more aesthetic and ensure uniform force. Standard hexagon for easy installation, you won't have to worry about rust or wear and tear.This flat socket cap screws assortment set is complete in spec…
SpecPicks Verdict
SpecPicks classifies 45pcs 1/4-20 5 Sizes Countersunk Head Flat Socket Head Cap Screws Ass… as a solid pick with broad community endorsement in the retro motherboards category, based on 32 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Matrelt's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for retro motherboards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.5★ average across customer reviews
- ✓ Backed by Matrelt's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- 【Size and Quantity】-- Thread Diameter: 1/4-20"; Length: 3/8" 15pcs, 1/2" 12pcs, 3/4" 8pcs, 1" 6pcs, 1-1/2" 4pc. 45pcs 5 sizes black set screws and 1/4 allen keys assortment kit
- 【High-grade Material】--Made of grade 10.9 carbon steel, The advanced blackening process provides excellent corrosion resistance, deep thread, even pitch, smooth surface. Carbon steel composition allows them to withstand strong tensile forces So they will not strip or come out
- 【Wide Use】-- Flat socket cap screws perfect for connection fastening function, Suitable for indoor and outdoor applications. Widely used in mechanical equipment, precision machinery, mechanical mold,classified instruments, electronic products, classified instruments, bags, leather product, tables chairs furnitures, light fixtures
- 【Easy to Install】-- Flat head socket cap screw is a type of cap screw with a flat top surface. The hexagonal shape makes it easy to tighten and loosen the screws, even in hard-to-reach areas, Set screws assortment kit with allen key providing maximum convenience and efficiency.
- 【Portable & Storage】Flat countersunk head hex socket set screws packed in a delicate and transparent box, includes 5 sizes screws and allen keys suitable for different types of applications, you can easily store and find the size you need
Full Specifications
| Brand | Matrelt |
|---|---|
| Color | Black |
| Material | Carbon Steel |
| Set Name | BLACK-5Size-1/4-45P |
| Head Type | Flat |
| Size Name | BLACK-5Size-1/4-45P |
| Head Style | Flat |
| Metal Type | Carbon Steel |
| Unit Count | 45.0 Count |
| Part Number | MAT2025022501 |
| Point Style | Flat Point |
| Thread Size | 1/4-20 |
| Thread Type | Unc |
| Drive System | External Hex |
Ready to buy?
45pcs 1/4-20 5 Sizes Countersunk Head Flat Socket Head Cap Screws Assortment Kit with Allen Keys, Black Grade 10.9 Carbon Steel Socket Cap Bolts Flat Countersunk Head Machine Screws is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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