FS435 Hobson Class 3 Metal SDS Button Wafer Screw #8-18 x 20mm
The FS435 Hobson Metal SDS Button Wafer Screw is a Class 3 self-drilling screw designed for fastening light-gauge metal, sheet metal and trade fixing applications.
Built for practical installation work, this #8-18 x 20mm screw features a self-drilling metal SDS point and a button wafer head that provides a low-profile finish with good bearing area. The Phillips drive supports common trade tooling, while the Class 3 finish suits general exposed and trade fastening applications where corrosion resistance is required.
Key Features
Hobson metal self-drilling screw
QFind reference FS435
Stock code FST9PM3AP0818020
#8-18 screw size
20mm length
Button wafer head
Phillips drive
Self-drilling metal SDS design
Class 3 finish
AS3566 specification
Suitable for light-gauge metal and sheet metal fastening
Practical for HVAC-R, duct, cladding, flashing and general trade work
Specifications
| Specification | Details |
|---|
| QFind / Product Code | FS435 |
| Hobson Stock Code | FST9PM3AP0818020 |
| Product Type | Metal SDS Button Wafer |
| Description | CL3 MET BWAF PH: 8-18 x 20 |
| Finish | Class 3 |
| Size | #8-18 |
| Length / Dimension | 20mm |
| Drive Type | Phillips |
| Head Type | Button Wafer |
| Screw Type | Metal SDS / Self-Drilling Screw |
| Specification / Reference | AS3566 Phillips Drive |
| Recommended Category | Metal Self Drilling Screws |
| Application | Light-gauge metal, sheet metal and trade fastening |
Applications
HVAC-R sheet metal fixing
Ductwork installation
Flashing and light cladding fixing
General metal-to-metal fastening
Bracket and accessory fixing
Roofing and trade maintenance work
Light-gauge steel fastening
Commercial fit-out and service work
The FS435 Hobson Class 3 Metal SDS Button Wafer Screw is a practical trade fixing for installers needing a 20mm self-drilling metal screw with a button wafer head and Phillips drive for light-gauge metal applications.
