All collections

M6 metric screws, bolts, nuts and washers – socket cap, button, flat, set, and hex styles | Monster Bolts

M6 Screws – Socket Cap (Std, Low, Button, Flat), Set, Hex Bolts & Phillips Machine
M8 socket cap, low head, button, flat, set screws, hex bolts, nuts and washers – metric fasteners | Monster Bolts

M8 Screws, Bolts, Nuts & Washers – Socket Cap (Std, Low, Button, Flat), Set & Phillips
Monster Bolts US Machine Screws — Phillips flat head and pan head, stainless steel and black oxide

Machine Screws (Inch) – Flat & Pan Head

Machined Hardware – Sheaves, Axle Bolts & Block Hinges

Made in USA Fasteners & USA-Machined Boat Rigging – Monster Bolts
Magnetic Nutsetters with 1/4" Hex Power Shank

Magnetic Nutsetters with 1/4" Hex Power Shank
Monster Bolts Metric All Metal Lock Nuts – DIN 6927, Prevailing Torque Locknuts in Steel and Stainless

Metric All Metal Lock Nuts – DIN 6927
M3 Button Head Socket Cap screws, 12.9 Alloy Steel w/ Black Oxide - Monster Bolts

Metric Black Bolts
Metric Bulk Wholesale Pricing

Metric Bulk Wholesale Pricing
Monster Bolts Metric Button Head Socket Cap Screws – ISO 7380, Alloy Steel Black Oxide & Zinc, Stainless A2 & A4

Metric Button Head Socket Cap Screws - ISO 7380
Monster Bolts Metric Coupling Nuts – DIN 6334, Fully Threaded Extension Nuts in Zinc-Plated Steel & A2 Stainless

Metric Coupling Nuts – DIN 6334
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 banner for Metric Socket Screws collection — featuring logo and ‘Metric All Socket Products’ text.

Metric Socket Screws – Button, Flat, Cap, Low Head & Set
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
Set of 12 black 6mm saddle height screws for Fender MIM and Ibanez Mono-Tune bridges.

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