Steel Button Socket Screw 10.9
ISO 898-1 class 10.9 button-head socket screws to ISO 7380. Compact high-strength rounded heads — not a substitute for DIN 912 where full preload is required. Listed M3–M10.
Choose a size below and add it to your quote.
Available Sizes & Finishes
91 sizes available
Filters
Diameter (mm)
Thickness (mm)
Applications & Selection Guide
ISO 898-1 property class 10.9 button-head socket screws to ISO 7380. Low rounded head with internal hex, listed M3–M10. Higher material class does not cancel the shallow-head torque limit — this is not a drop-in for a DIN 912 10.9 cap screw.
Higher material class does not cancel the geometric limit of a button head — DIN 912 remains the correct choice for full 10.9 preload. Specify 10.9 button heads only when the drawing calls for this form. Confirm coating of 10.9 parts.
Request a quote with M×L sizes, quantities, surface finish, and delivery country.
Technical guides
Bolt grades and sizes: 8.8, 10.9, 12.9, A2 and A4, and metric hex bolt dimensions
What the property classes 4.8, 8.8, 10.9 and 12.9 and stainless A2-70 and A4-70 mean, minimum strength and tensile loads, metric thread pitch and hex head sizes, DIN 933 vs DIN 931, and which nut goes with which bolt.
Read the guide →Screw types compared: socket head, countersunk, set, carriage, tapping and self-drilling screws, with their DIN and ISO standards
How socket head, button head, countersunk, low-head and set screws differ, what DIN 912, ISO 7380, DIN 7991, DIN 916, DIN 603, DIN 965, DIN 7981 and DIN 7504 stand for, and which screw to order for machinery, timber and sheet metal.
Read the guide →Product Information
Material Grade
ISO 898-1 class 10.9
Manufacturing Standard
ISO 7380
Material Type
Steel
Category
Button Socket Screw
Ready to request pricing?
Add sizes to your quote cart, or paste your full list — Excel, CSV, or plain text.