MonsterBULKS Volume pricing • Carton integrity • Fast U.S. shipping • MTR on request
Bulk Socket Screws (Metric & Inch)
Stock up on premium socket screws in bulk from Monster Bolts. Shop Metric (M3–M12+) and US/Inch (1/4"–1/2"+) in 12.9 alloy steel (thermal black oxide) and stainless steel (A2-70 / 18-8, A4 / 316). The MonsterBULKS program delivers consistent quality, reliable case counts, and responsive U.S. support.
Metric — Head Type
Metric — Material
Metric — Quick Sizes
US / Inch — Head Type
US / Inch — Material
US / Inch — Quick Sizes
Notes: Black oxide is primarily for appearance and offers only a mild layer of protection. CR+3 zinc, hot-dipped galvanized (HDG), thermal black oxide, and plain finishes are RoHS compliant per Monster Bolts policy. MTRs available on request for bulk carton orders.
Related Bulk Collections
Bulk Machine Screws
Pan & flat head machine screws • Metric & Inch
Bulk Hex & Hex Flange Bolts
Tap Bolts (FT) & partial thread • Metric & Inch
Bulk Nuts
Hex, flange, nyloc, and specialty • Metric & Inch
Bulk Washers
Flat, split lock, fender, sealing • Metric & Inch
Bulk Lag Bolts
Heavy-duty hex lag bolts for wood, framing & structural applications
FAQs — Bulk Socket Screws
What sizes are stocked?
Monster Bolts carries one of the industry’s widest selections of bulk socket screws. Metric sizes range from M1.6 through M42, and US/Inch sizes span from #0-80 up to 1-1/2"-6. That’s a huge size range covering everything from micro fasteners for electronics to heavy-duty industrial and structural applications. Both coarse and fine thread options are available across most diameters.
Are finishes RoHS compliant?
Yes. CR+3 zinc, HDG, thermal black oxide, and plain finishes are RoHS compliant.
Can I request MTRs?
Yes. Material Test Reports are available for bulk carton orders—just ask at checkout or contact support.
Do you offer volume discounts?
Yes. MonsterBULKS provides tiered pricing at carton and master-carton levels; contact us for larger quantities.
Bulk 7/16"-14 Button Head Socket Cap Screws – Alloy Steel, Black Oxide
Sale priceFrom $196.38
Bulk 3/8"-24 Button Head Socket Cap Screws – Alloy Steel, Black Oxide
Sale priceFrom $162.66
Bulk 3/8"-16 Button Head Socket Cap Screws – Alloy Steel, Black Oxide
Sale priceFrom $114.23
Bulk 3/8-24 Socket Head Cap Screws – Fine Thread (UNF), 18-8 Stainless – Monster Bolts
Sale priceFrom $182.70
Bulk 3/8-16 Socket Head Cap Screws – Coarse Thread (UNC), 18-8 Stainless – Monster Bolts
Sale priceFrom $111.97
Bulk #10-24 Socket Set Screws, Cone Point, Black Oxide
Sale priceFrom $543.60
Bulk #5-40 Socket Set Screws, Cone Point, Black Oxide
Sale priceFrom $588.71
Bulk #4-40 Socket Set Screws, Cup Point, Alloy Steel, Thermal Black Oxide
Sale priceFrom $179.33
Bulk 1/4"-20 x 1" Slotted Cup Point Set Screws, Stainless Steel A2 (18-8)
Sale price$1,081.01
Bulk 1/4"-28 UNF Knurled Cup Point Socket Set Screws, Thermal Black Oxide
Sale priceFrom $345.04
Bulk 1/4"-20 UNC Knurled Cup Point Socket Set Screws, Thermal Black Oxide
Sale priceFrom $343.80
Bulk 1/4"-20 Socket Set Screws, 1/2 Dog Point, Stainless Steel A2 (18-8)
Sale priceFrom $278.72
Bulk 1/4"-28 Socket Set Screws, 1/2 Dog Point, Alloy Steel (Black Oxide)
Sale priceFrom $416.70
Bulk 1/4"-20 Socket Set Screws, 1/2 Dog Point, Alloy Steel (Black Oxide)
Sale priceFrom $405.00
Bulk 1/4"-20 UNC Socket Set Screws, Cone Point, Stainless 18-8
Sale priceFrom $358.76
Bulk 1/4"-28 Socket Set Screws, Cone Point, Black Oxide
Sale priceFrom $574.76
Bulk 1/4"-20 Socket Set Screws, Cone Point, Black Oxide
Sale priceFrom $574.76
Bulk 1/4"-28 x 1/4" UNF Socket Set Screws, Cup Point, Stainless 316
Sale price$604.24
Bulk 1/4"-20 UNC Socket Set Screws, Cup Point, Stainless 316
Sale priceFrom $563.40
Bulk 1/4"-28 UNF Socket Set Screws, Cup Point, Stainless A2 (18-8)
Sale priceFrom $242.44
Bulk 1/4"-20 Socket Set Screws, Cup Point, Stainless A2 (18-8)
Sale priceFrom $207.00
Bulk 1/4"-28 UNF Socket Set Screws, Cup Point, Zinc-Bake CR+3
Sale priceFrom $224.21
Bulk 1/4"-20 UNC Socket Set Screws, Cup Point, Zinc-Bake CR+3
Sale priceFrom $222.30
Bulk 1/4"-28 Socket Set Screws, Cup Point, Alloy Steel, Thermal Black Oxide
Sale priceFrom $198.00
Bulk 1/4"-20 Socket Set Screws, Cup Point, Alloy Steel, Thermal Black Oxide
Sale priceFrom $180.79
Bulk M16 Knurled Cup Point Socket Set Screws, Thermal Black Oxide
Sale priceFrom $470.63
Bulk M12 Knurled Cup Point Socket Set Screws, Thermal Black Oxide
Sale priceFrom $271.91
Bulk M10 Knurled Cup Point Socket Set Screws, Thermal Black Oxide
Sale priceFrom $353.90
Bulk M8 Knurled Cup Point Socket Set Screws, Thermal Black Oxide
Sale priceFrom $404.66
Bulk M6 Knurled Cup Point Socket Set Screws, Thermal Black Oxide
Sale priceFrom $252.45
Bulk M5 Knurled Cup Point Socket Set Screws, Thermal Black Oxide
Sale priceFrom $243.23
Bulk M4 Knurled Cup Point Socket Set Screws, Thermal Black Oxide
Sale priceFrom $228.83
Bulk M3 Knurled Cup Point Socket Set Screws, Thermal Black Oxide
Sale priceFrom $227.36
Bulk M20 Socket Set Screws, Dog Point, 45H Alloy Steel, ISO 4028 / DIN 915, Black Oxide
Sale priceFrom $79.79
Bulk M16 Socket Set Screws, Dog Point, 45H Alloy Steel, ISO 4028 / DIN 915, Black Oxide
Sale priceFrom $166.54
Bulk M12 Socket Set Screws, Dog Point, 45H Alloy Steel, ISO 4028 / DIN 915, Black Oxide
Sale priceFrom $315.42
Bulk M10 Socket Set Screws, Dog Point, 45H Alloy Steel, ISO 4028 / DIN 915, Black Oxide
Sale priceFrom $201.51
Bulk M8 Socket Set Screws, Dog Point, 45H Alloy Steel, ISO 4028 / DIN 915, Black Oxide
Sale priceFrom $698.74
Bulk M6 Socket Set Screws, Dog Point, 45H Alloy Steel, ISO 4028 / DIN 915, Black Oxide
Sale priceFrom $354.71
Bulk M5 Socket Set Screws, Dog Point, 45H Alloy Steel, ISO 4028 / DIN 915, Black Oxide
Sale priceFrom $353.36
Bulk M4 Socket Set Screws, Dog Point, 45H Alloy Steel, ISO 4028 / DIN 915, Black Oxide
Sale priceFrom $335.14
Bulk M3 Socket Set Screws, Dog Point, 45H Alloy Steel, ISO 4028 / DIN 915, Black Oxide
Sale priceFrom $27.65
Bulk M16 Socket Set Screws, Cone Point, Black Oxide (ISO 4027 / DIN 914)
Sale priceFrom $641.79
Bulk M12 Socket Set Screws, Cone Point, Black Oxide (ISO 4027 / DIN 914)
Sale priceFrom $334.08
Bulk M10 Socket Set Screws, Cone Point, Black Oxide (ISO 4027 / DIN 914)
Sale priceFrom $534.23
Bulk M8 Socket Set Screws, Cone Point, Black Oxide (ISO 4027 / DIN 914)
Sale priceFrom $597.65