The M6 metric screw (6 mm nominal diameter) is a core fastener size used throughout automotive, mechanical, and industrial assembly. Monster Bolts offers the full range — Socket Cap (standard, low head, button, flat), Set Screws, Hex Cap Bolts, and Phillips Pan & Flat Machine Screws — all built to DIN and ISO standards and available in alloy or stainless steel.
Shop by M6 Head Type
M6 Socket Head Cap Screws
DIN 912 / ISO 4762 • High clamp force • Allen/Hex drive
M6 Low Head Socket Cap Screws
Reduced head height • Tight clearances • Allen/Hex drive
M6 Button Head Cap Screws
ISO 7380 • Low profile dome head • Allen/Hex drive
M6 Flat Socket (Countersunk) Screws
DIN 7991 / ISO 10642 • 90° countersink • Flush finish
M6 Cup Point Set Screws
Grub screws • Allen/Hex drive • Cup point
M6 Hex Cap Bolts
DIN 933 (full thread) / DIN 931 (partial) • External hex drive
M6 Phillips Pan Machine Screws
Machine thread • For tapped holes or use with nuts
M6 Phillips Flat Machine Screws
90° countersink • Flush finish • Machine thread
Quick Specs
| Spec | Details |
|---|---|
| Diameter | M6 (6.0 mm nominal) |
| Common Pitch | 1.0 mm (coarse) |
| Typical Drive | Internal hex/Allen for socket types; Phillips for machine screws; external hex for hex bolts. Need a key? Hex Key Hub or Individual Metric Keys. |
| Materials & Finishes | 12.9 alloy steel, 18-8/A2 stainless, A4/316 stainless; black oxide or zinc where specified. |
M6 Size & Pitch Reference
Need head dimensions, countersink details, or torque specs? See the M6 screw size chart.
Matching M6 Nuts & Washers
Pair your screws and bolts with the right hardware for a complete fastening solution:
- Metric Nuts & Washers (All) — filter for M6 to match threads precisely.
Frequently Asked Questions
What’s the standard thread pitch for M6 screws?
The standard coarse pitch is 1.0 mm. Some fine-thread variants (0.75 mm) exist for precision applications.
When should I use Low Head Socket Screws?
Use Low Head screws when clearance is limited but strength is still required. These have a reduced head height compared to standard DIN 912.
What’s the torque spec for M6 socket cap screws?
Torque varies by material. See the Metric Socket Screw Torque Chart for detailed data.
Does black oxide protect against rust?
Black oxide offers a mild corrosion barrier and uniform dark finish. Stainless options provide far superior rust resistance.
Order with Confidence
Monster Bolts ships fast from the USA and backs every order with helpful support. Need help finding the exact M6 part? Contact our team.
Metric Flat Washer, Stainless Steel DIN 125A (125 A) 18-8 / A2
Sale priceFrom $0.58
Metric Nylon Insert Hex Lock Nuts - Stainless Steel DIN 985 18-8 / A2
Sale priceFrom $0.94
M6 Socket Head Cap screws, Stainless Steel A2 (18-8)
Sale priceFrom $2.12
Metric Nylon Insert Hex Lock Nuts - DIN 985 Black Oxide Steel Class 8
Sale priceFrom $1.40
M6 Button Head Socket Cap screws, 12.9 Alloy Steel w/ Black Oxide
Sale priceFrom $1.43
M6 Socket Head Cap screws, Class 12.9 Alloy Steel w/ Black Oxide
Sale priceFrom $1.29
M6 Button Head Socket Cap screws, Stainless Steel A2 (18-8)
Sale priceFrom $1.80
M6 Flat Head Socket Cap screws, Class 12.9 Alloy Steel w/ Black Oxide
Sale priceFrom $1.41
DIN 125A Metric Flat Washers, 200 HV Plain Steel (125 A)
Sale priceFrom $0.49
M6-1.0 Stainless Steel Hex Cap Bolts - Full & Partial Thread
Sale priceFrom $1.69
Metric Split Lock Washers - Stainless Steel DIN 127B 18-8 / A2
Sale priceFrom $0.61
Marine Grade Stainless Steel Flat Washer, A4 (316) - DIN 125A (125 A)
Sale priceFrom $0.62
Metric Fender Washer - Stainless Steel DIN 9021, 18-8 / A2
Sale priceFrom $0.59
Hex Nuts, Metric DIN 934 Steel w/ plain finish, Class 10
Sale priceFrom $0.75
M6 Flat Head Socket Cap screws, Stainless Steel A2 (18-8)
Sale priceFrom $1.62
Marine Grade Stainless Steel Hex Nuts, A4 (316) DIN 934 - Metric Coarse
Sale priceFrom $0.88
Metric Steel Split Lock Washers with Black Ox DIN 127B
Sale priceFrom $0.66
M6 Marine Grade Flat Head Socket Cap screws, Stainless Steel A4 (316)
Sale priceFrom $2.42
M6 Marine Grade Button Head Socket Cap screws, Stainless Steel A4 (316)
Sale priceFrom $2.41
Marine Grade Stainless Steel Fender Washers, A4 (316) - Metric DIN 9021
Sale priceFrom $0.69
DIN 125A Metric Flat Washers, 200 HV Steel Zinc Plated Cr+3 RoHS (125 A)
Sale priceFrom $0.48
Marine Grade Stainless Steel Split Lock Washers, A4 (316) - DIN 127B
Sale priceFrom $0.63
M6 Phillips Pan Head Machine screws, A2 Stainless Steel DIN 7985A Coarse Thread
Sale priceFrom $1.92
DIN 985 Nylon Insert Hex Lock Nuts - Zinc Plated Alloy Steel, Class 8 & 10 Cr+3 RoHS
Sale priceFrom $0.73
M6 Low Head Socket Cap screws, 18-8 Stainless Steel A2
Sale priceFrom $2.35
Thick Flat Washers, DIN 7349 Low Carbon Steel Zinc Plated Cr+3 RoHS M4 M5 M6 M8 M10
Sale priceFrom $0.63
Hex Serrated Flange Nuts, Zinc Plated Class 8 Alloy Steel Metric DIN 6923 / ISO 4161
Sale priceFrom $0.85
Metric Hex Flange Nuts, Stainless Steel DIN 6923 / ISO 4161
Sale priceFrom $1.50
M6 Marine Grade Socket Head Cap screws, Stainless Steel A4 (316)
Sale priceFrom $3.25
Hex Serrated Flange Nuts, Stainless Steel A2 (18-8) DIN 6923 / ISO 4161
Sale priceFrom $1.22
Hex Nuts, Zinc Plated Alloy Steel, Metric DIN 934 Class 8 & 10 Cr+3 RoHS
Sale priceFrom $0.68
M6 Titanium Socket Head Cap screws DIN 912 / ISO 4762
Sale priceFrom $2.19
M6 Hex Bolts, 10.9 Alloy Steel w/ Black Oxide
Sale priceFrom $1.92
Stainless Steel Acorn Domed Cap Hex Nuts, High Type, Metric DIN 1587
Sale priceFrom $2.06
Metric Hex Flange Nuts, Zinc Plated Class 8 Alloy Steel DIN 6923 / ISO 4161
Sale priceFrom $0.81
Metric Fender Washer - Zinc Plated Steel DIN 9021, Grade A
Sale priceFrom $0.58
M6 Low Head Socket Cap screws, Class 10.9 Alloy Steel w/ Black Oxide
Sale priceFrom $3.01
M6 Cup Point Socket Set screws, Stainless Steel A2 (18-8)
Sale priceFrom $1.50
M6 Titanium Button Head Socket Caps screws ISO 7380 / DIN 9427
Sale priceFrom $2.45
M6 Socket Set screws w/ Cup Point, Class 14.9 Alloy Steel with Black Oxide
Sale priceFrom $1.09
M6 Phillips Flat Head Machine screws, A2 Stainless Steel DIN 965 Coarse Thread
Sale priceFrom $1.94
M6 Titanium Torx Button Head Caps screws ISO 7380 / DIN 9427
Sale priceFrom $2.48
M6-1.0mm Socket Head Cap Screws - Zinc Plated 12.9 Alloy Steel
Sale priceFrom $13.04
M6-1.0mm Button Head Socket Cap Screws - Zinc Plated 12.9 Alloy Steel
Sale priceFrom $9.40
M6 Phillips Flat Head Machine screws, Steel w/ Black Oxide DIN 965 Coarse Thread
Sale priceFrom $2.04