Aluminum Ultra-Wide Flanged Button Head Screws
M6 x 1 mm Thread Size, 20 mm Long







Thread | |
Size | M6 |
Pitch | 1 mm |
Direction | Right Hand |
Spacing | Coarse |
Type | Metric |
Fit | Metric Class 6g |
Tip Type | Flat |
Size Designation | Oversized |
Fastener Head Type | Flanged, Rounded |
Head | |
Style | Button |
Profile | Wide |
Height | 5.3 mm |
Diameter | 9.7 mm |
Drive | |
Style | Hex |
Size | 4 mm |
Length | 20 mm |
Flange Diameter | 20.3 mm |
Threading | Fully Threaded |
Tensile Strength | 40,000 psi |
Flange Thickness | 2.7 mm |
Hardness | Rockwell B40 |
Material | 6061 Aluminum |
Performance | Conductive, Corrosion Resistant, Lightweight, Nonmagnetic |
System of Measurement | Metric |
Country of Origin | United States |
DFARS Compliance | Specialty Metals COTS-Exempt |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | REACH (EC 1907/2006) (06/25/2025, 250 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant with Exemptions |
RoHS Exemptions | 6(b)-II |
Schedule B Number | 761610.6000 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | Yes |
One-third the weight of steel, these are the lightest flanged screws we offer. They have an oversized flange that spreads pressure over a large area to protect thin material without needing a washer. The button head looks similar to a pan head, but it's lower and more compact, taking up less space. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver.
Length is measured from under the head.
6061 Aluminum—With a high strength-to-weight ratio, these lightweight screws offer good corrosion resistance.
The information in this 3-D model is provided for reference only.




























