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Top-quality Bulk #12-24 Phillips Flat Head Machine Screws – 18-8 Stainless Black Oxide Save 55% + Free Ship [JsY1wEUv]

$28.99 $92.99 -69%

Monster Overview:Fix your project right the first time with Bulk 12-24 Phillips Flat Head Machine Screws made from 18-8 Stainless Steel and treated with a Black Oxide Finish. These fully threaded flat head screws are designed for countersunk installa

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Top-quality Bulk #12-24 Phillips Flat Head Machine Screws – 18-8 Stainless Black Oxide Save 55% + Free Ship [JsY1wEUv]

MonsterBolts Fasteners Monster Bolts Banner

Monster Overview:

Fix your project right the first time with Bulk 12-24 Phillips Flat Head Machine Screws made from 18-8 Stainless Steel and treated with a Black Oxide Finish. These fully threaded flat head screws are designed for countersunk installations where a flush, smooth finish is required. With a minimum tensile strength of 80,000 psi (100,000 psi after cold working), they offer reliable holding power and long-term resistance to corrosion and wear in industrial, mechanical, or marine applications.

Monster Bolts offers premium stainless fasteners in bulk, shipped quickly from the U.S. and backed by our commitment to quality and support.

Monster Features:

  • Material: 18-8 / A2 stainless steel — corrosion-resistant and non-magnetic in most conditions.
  • Tensile Strength: 80,000 psi minimum (100,000 psi after cold working).
  • Finish: Black Oxide — matte black appearance with light corrosion resistance (RoHS compliant).
  • Drive: #2 Phillips — standard and easy to use with common tools.
  • Head Style: Flat head — ideal for flush-mounting in countersunk holes.

Monster Specifications:

  • Thread Size: 12-24 UNC (Unified Coarse Thread)
  • Thread Length: Fully threaded
  • Head Style: Phillips Flat Head
  • Material: 18-8 Stainless Steel
  • Finish: Black Oxide
    (RoHS Directive 2011/65/EU compliant)

More Monster Bolts:

Matching Nuts & Washers: Complete your setup with bulk inch stainless nuts and bulk inch stainless washers for 12-24 hardware.

Order Yours Today and Experience the Monster Bolts Difference!

Buy with confidence! Every order from Monster Bolts is backed by our commitment to quality, fast shipping, and customer satisfaction.

What Our Customers Say

January 28, 2026

Absolutely no complaints!

Arrived quickly and in perfect condition.

- Laura Davis.

January 28, 2026

Absolutely no complaints!

If you're on the fence, just get it. You won't regret it.

- Robert Baker.

January 28, 2026

Absolutely no complaints!

This is a very snappy and responsive device.

- SnappyDevice.

Write a Review

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