Bulk M20 Flat Head Socket Cap Screws – 12.9 Alloy Steel, Black Oxide
M20 Flat Head Socket Cap screws, Class 12.9 Flat head screws are used in machine parts, die fixturing, and especially common for removable panels and parts. Flat Heads are fully countersunk, so they become flush when installed. These are most often used for assembling close tolerance machinery where head clearance is critical.
M20 Flat Head Socket Cap screws, Class 12.9 Alloy Steel w/ Black Oxide - Monster Bolts
Bulk M20 Flat Head Socket Cap Screws – 12.9 Alloy Steel, Black Oxide
Bulk M20 Flat Head Socket Cap Screws – 12.9 Alloy Steel, Black Oxide
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Bulk M20 Flat Head Socket Cap Screws – 12.9 Alloy Steel, Black OxideM20 Flat Head Socket Cap screws, Class 12.9 Flat head screws are used in machine parts, die fixturing, and especially common for removable panels and parts. Flat Heads are fully countersunk, so they become flush when installed. These are most often used for assembling close tolerance machinery where head clearance is critical.M20 Flat Head Socket Cap screws, Class 12.9 Alloy Steel w/ Black Oxide - Monster BoltsBulk M20 Flat Head Socket Cap Screws – 12.9 Alloy Steel, Black OxideBulk M20 Flat Head Socket Cap Screws – 12.9 Alloy Steel, Black Oxide

Bulk M20 Flat Head Socket Cap Screws – 12.9 Alloy Steel, Black Oxide

MonsterBULKS
Length: 150 Qty - M20-2.50 x 30mm
Price:
$171.93

Description

Monster Bolts – Bulk Fasteners

Monster Overview:

When your project demands both strength and a clean, flush finish, M20 Flat Head Socket Cap Screws from Monster Bolts deliver unmatched performance. Made from Class 12.9 alloy steel with a durable thermal black oxide coating, these countersunk fasteners combine high tensile strength, precision machining, and a sleek, low-glare appearance. The M12 hex drive ensures secure engagement for reliable torque control and repeatable assembly results in heavy machinery and structural applications.

Quality & Supply: Every production lot meets Monster Bolts’ internal benchmarks for hardness, dimensional precision, and surface consistency. Available in both full-thread and partial-thread (PT) options to suit your application requirements.

Monster Features:

  • Flush 90° Countersunk Head: Provides a smooth, even finish ideal for precision-engineered or clearance-limited assemblies.
  • Superior Strength: Class 12.9 alloy steel ensures maximum tensile and preload capacity.
  • Precision Drive: M12 hex socket delivers consistent torque and reduced cam-out risk.
  • Thermal Black Oxide: Lightly oiled, RoHS-compliant finish offers mild corrosion resistance and a uniform black tone.
  • Standards: Fully meets DIN 7991 / ISO 10642 specifications for dimensional accuracy and fit.

Monster Specifications

Feature Details
Diameter / Thread M20-2.50 (coarse, standard metric)
Drive Size Hex M12
Head Type Flat Head Socket Cap Screw – 90° countersunk profile
Material / Grade Black Alloy Steel, Class 12.9
Finish Thermal Black Oxide (light oil; RoHS compliant)
System of Measurement Metric
Standards DIN 7991 / ISO 10642

Length Measurement: Flat head screws are measured over their entire length, including the head.
Note: “PT” designates Partial Thread versions.

More Monster Bolts:

• M12 Hex Keys
• Matching M20 Nuts & Washers
• All Bulk Metric Flat Head Socket Screws

Order Today and Experience the Monster Bolts Difference

Buy with confidence — every Monster Bolts bulk order is backed by rigorous inspection, responsive support, and fast U.S. fulfillment.
MTRs available upon request for unopened bulk cartons.

Note: Bulk shipping times may vary slightly depending on order size and warehouse location. Most orders ship within a few business days.

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