All collections

Metric extra thick flat washer DIN 7349 – large OD, heavy section, zinc plated

Metric Extra Thick Flat Washers – DIN 7349
Monster Bolts Metric Fender Washers DIN 9021 – A2 Stainless, A4 Marine, Zinc, Titanium

Metric Fender Washers – DIN 9021
Metric Flange Nuts – Stainless A2 & Zinc, Smooth, Serrated, Prevailing Torque (DIN 6923 / DIN 6926 / DIN 6927)

Metric Flange Nuts – Stainless & Zinc, Smooth, Serrated & Prevailing Torque
Monster Bolts Metric Flat Head Socket Cap Screws – 12.9 Alloy, A2 Stainless, A4 Marine Grade

Metric Flat Head Socket Cap Screws - DIN 7991
Metric Flat Head Socket Cap Screws available in either Alloy steel or Stainless

Metric Flat Socket Cap Screws - Stainless & 12.9 Alloy
Monster Bolts Metric Flat Washers DIN 125A – Stainless, Zinc, A4 Marine, Plain Steel & Titanium

Metric Flat Washers – DIN 125A
Monster Bolts Metric Hex Cap Screws – A2 Stainless M4–M10 & Black Alloy Steel M6/M8

Metric Hex Cap Screws – A2 Stainless M4–M10 & 10.9 Black Alloy (M6, M8)
Monster Bolts Hex Keys & Driver Bits – Metric DIN 911, Inch ASME B18.3, Phillips & Torx

Metric Hex Keys & Driver Bits
Monster Bolts Metric Hex Nuts DIN 934 – Stainless Steel, Marine Grade A4, Black Oxide & Zinc Plated

Metric Hex Nuts - DIN 934
Monster Bolts Metric Low Head Socket Cap Screws – 12.9 Alloy Steel, Black Oxide & Zinc Finishes

Metric Low Head Socket Cap Screws - DIN 7984
Shop Metric Machine Screws at Monster Bolts. Available in stainless steel or black oxide with Phillips pan or flat heads. Ideal for appliances, automotive, and machinery builds.

Metric Machine Screws – Pan & Flat Head
Monster Bolts Metric Nuts – Hex, Acorn, Locking, Flange, Stainless & Marine Grade

Metric Nuts – Hex, Acorn, Locking & Flange
Monster Bolts Metric Nylon Insert Lock Nuts – DIN 985, Nylock Steel, Zinc, Black Oxide, A2 Stainless, A4 Marine

Metric Nylon Insert Lock Nuts (Nylock) – DIN 985
Monster Bolts Metric Phillips Flat Head Machine Screws – DIN 965, Stainless A2 & Black Oxide

Metric Phillips Flat Head Machine Screws – DIN 965
Monster Bolts Metric Phillips Pan Head Machine Screws – DIN 7985, A2 Stainless & Black Oxide

Metric Phillips Pan Head Machine Screws – DIN 7985
Metric Socket Head Cap Screws by Monster Bolts – High-Strength Alloy & Marine Grade Stainless Option

Metric Socket Head Cap Screws - DIN 912
Monster Bolts Metric Socket Screws – Button, Flat, Cap, Set & Low Head in Alloy Steel, Titanium & Stainless (A2/A4 Marine Grade)

Metric Socket Screws – Button, Flat, Cap, Set & Low Head
Monster Bolts Metric Socket Set Screws – Cup & Knurled Point, Alloy Steel & Stainless M2–M12

Metric Socket Set Screws (Cup Point) - DIN 916
Monster Bolts Metric Split Lock Washers DIN 127B – Black Oxide Steel, A2 Stainless & A4 Marine

Metric Split Lock Washers – DIN 127B
Monster Bolts Metric Square Nuts DIN 557 – A2 Stainless Steel M5–M10

Metric Square Nuts – Stainless Steel A2 - DIN 557
Metric Washers Collection | Flat, Split Lock, Thick Flat & Fender Washers

Metric Washers Collection | Flat, Split Lock, Thick Flat & Fender Washers
Monster Bolts Metric Washers — Flat, Split Lock, Thick, Fender | DIN 125A, 127B, 7349, 9021

Metric Washers – Flat, Lock, Thick & Fender (DIN 125A, 127B, 7349, 9021)

Monster Bolts Merch - Stickers, Transfers, etc
MonsterBolts entire Metric Fastener Catalog

Monster Bolts Metric Fasteners – Screws, Bolts, Nuts, and Washers
Link to all our US sized fasteners in one place including bolts, nuts, washers, sheet metal screws.

Monster Bolts U.S. Inch Fasteners – Screws, Bolts, Nuts, and Washers

Newest Products
Waterproof KrimpaSeal Sealed Electrical Connectors. Butt Connectors, Ring Terminals, and Step-Down Butt Connectors for joining two different gauge wire.

NSPA KrimpaSeal - Sealed Electrical Connectors
Waterproof OptiSeal Sealed Electrical Connectors, including Butt Connectors, Ring Terminals and Step-Down Butt Connectors.

NSPA OptiSeal - Sealed Electrical Connectors
Nuts and Locking Nuts

Nuts and Locking Nuts
Nylon Insert Locknuts

Nylon Insert Locknuts
Outdoor wood screws or deck screws, Star Drive Flat Head with type 17 point

Outdoor screws for ACQ treated lumber
Pan Head Machine Screws

Pan Head Machine Screws
Monster Bolts Pan Head Machine Screws (Inch) — Phillips drive #4-40 to #10-32, stainless steel and black oxide

Pan Head Machine Screws (Inch) – Phillips Drive
Phillips Flat Head Machine Screws

Phillips Flat Head Machine Screws
Monster Bolts Phillips Flat Head Machine Screws (Inch) — #4-40 to #10-32, stainless steel and black oxide, countersunk flush fit

Phillips Flat Head Machine Screws (Inch)
Monster Bolts Phillips Pan Head Self-Tapping Screws — #14 stainless steel, corrosion-resistant sheet metal screw for metal, plastic, or wood

Phillips Pan Head Self-Tapping Screws (Inch) – #14 Stainless
Proferred Max Drive Deck Screws

Proferred Max Drive Deck Screws
Screwdriver Bits

Screwdriver Bits
#14 Stainless Steel Phillips Pan Head Self-Tapping Type A Sheet Metal Screws 18-8 - Monster Bolts

Self-Tapping Screws (Inch) – Stainless Steel Sheet Metal Screws
Set / Grub Screws - Stainless & 45H Alloy Steel

Set / Grub Screws - Stainless & 45H Alloy Steel
MonsterBolts Sheet metal screws

Sheet Metal Screws (Inch) – Self-Drilling & Self-Tapping
Monster Bolts Inch Socket Head Cap Screws to ASME B18.3 — Allen drive, alloy steel black oxide and 18-8 stainless, industrial fasteners

Socket Head Cap Screws - (Inch / Allen)
US Alloy and Stainless Socket Head Cap Screws

Socket Head Cap Screws - Stainless & 12.9 Alloy
Monster Bolts Inch Socket Screws — Allen drive fasteners including socket cap, button head, flat head, and set screws to ASME B18.3

Socket Screws — Allen / Hex Drive Fasteners (Inch, ASME B18.3)
Monster Bolts Socket Set Screws (Inch) — ASME B18.3, cup point Allen drive, alloy steel black oxide & stainless A2

Socket Set Screws (Inch) – Cup Point
Split Lock Washers

Split Lock Washers
Star / 6-Lobe Fasteners

Star / 6-Lobe Fasteners
Self Drilling sheet metal TEK screws with EPDM bonded washers

Tek roofing Screws | Hex-Washer Head w EPDM Bonded sealing washer, Drill-Point Screws