Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Screws
Origin	-
Material Grade	Grade 10.9 High Tensile Steel
Surface Finish	Nickel Plated for Corrosion Resistance
Head Style	Round Head with Hex Socket (Mushroom Pan)
Drive Type	Internal Hexagon (Allen Key)
Thread Standard	Metric Coarse Thread
Available Sizes	M1.6, M2, M2.5, M3, M4, M5, M6, M8
Tensile Strength	Minimum 1040 MPa
Yield Strength	Minimum 940 MPa
Application	Machinery, Automotive, and Precision Equipment
Package Content	Assorted Kit or Bulk Pack (Select Option)

6 reviews

Anonymous

Mar 29, 2026

Rating: 4/5

Strong but check your driver size

Very strong bolts, definitely hold up under high torque. Just make sure you use the correct metric Allen key; using an imperial one slightly rounded the edge on the M3 screw for me. Otherwise, great product.

Anonymous

Mar 28, 2026

Rating: 5/5

Excellent quality for precision work

These screws are exactly what I needed for my CNC project. The nickel plating is smooth, and the hex socket fits perfectly without stripping. Highly recommend for anyone needing reliable Grade 10.9 fasteners.

Anonymous

Mar 28, 2026

Rating: 5/5

Consistent quality

I order these regularly for our workshop. The consistency in thread pitch and head height is impressive. No defects found in the last three batches we ordered.

Anonymous

Mar 26, 2026

Rating: 4/5

Good value for money

Solid screws at a reasonable price. The nickel finish adds a nice aesthetic touch to visible parts. Took off one star only because the packaging could be more robust for smaller sizes like M1.6.

Anonymous

Mar 22, 2026

Rating: 5/5

Great variety of sizes

Bought the assorted kit to have on hand for various repairs. Every size from M2 to M6 was included and clearly labeled. The metal feels very sturdy compared to standard zinc-plated bolts.

Anonymous

Mar 02, 2026

Rating: 5/5

Perfect for automotive applications

Used these on a custom intake manifold. The mushroom head looks clean and the high tensile strength gives me peace of mind under the hood. Fast shipping too!

5 FAQ

Q: Are these screws suitable for outdoor use?

A: While the nickel plating offers good corrosion resistance, for harsh outdoor environments, we recommend applying an additional sealant or choosing stainless steel variants for maximum longevity.

Q: Is the thread full length or partial?

A: For sizes M1.6 through M6, the threads typically run close to the head (full thread) due to the short lengths usually required for these diameters. M8 may vary based on specific length selected.

Q: Can I buy just the M2.5 size in bulk?

A: Yes, we offer bulk packs for individual sizes. Please select the 'Bulk Option' from the dropdown menu and choose M2.5 to purchase them separately from the assorted kit.

Q: What is the exact head diameter for the M4 size?

A: For the M4 Round Head Hex Socket screws, the head diameter is approximately 7mm. Please refer to the detailed dimension chart in the product images for specific tolerances.

Q: Do these come with washers included?

A: No, this listing is for the screws only. Washers are sold separately. We recommend using hardened washers when torquing Grade 10.9 bolts to prevent surface damage.

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