Factory photograph of flat head half thread stainless steel screws. Finishes shown are examples — all fifteen catalogue finishes are available on this item.
Flat Head Half Thread Stainless Steel Screws
Flat head half thread stainless steel screws. Leaving the upper shank unthreaded lets the plain section pull the two parts together instead of jacking them apart — the detail that matters whenever a screw passes through one part into another.
- M0.8 – M42
- 2mm – 3000mm
- Half thread — plain shank clamps, thread pulls
- Flat head, countersinks flush
- Stainless SUS302 / 304 / 305 / 316 / 410
Specification
- Item code
- BF-106
- Product group
- Stainless Steel Machine Screws
Item code BF-106 follows our internal catalogue reference — quote it and we know exactly which line you mean. Figures shown are the specification range this item is made to, not a stock list.
Selection options
Every option below can be specified against this item. Head and drive are chosen independently of each other, and of the point and thread form.
| Head types | Options |
|---|---|
| Available | Flat · Pan · Hex washer head · Hex washer flange · Bugle · Wafer · Pan washer · Oval · Flower · Truss · Round |
| Drive types | Options |
|---|---|
| Available | Phillips · Square · Pozidriv · Square + Phillips · Torx · Slotted · Phillips + slotted |
| Point types | Options |
|---|---|
| Available | TEK#1 · TEK#2 · TEK#3 · TEK#4 · TEK#5 · Type 17 |
| Thread forms | Options |
|---|---|
| Available | Type-A · BSB · CSB · Hi-low · Machine · Double |
| Surface finishes | Options |
|---|---|
| Available | Plain · Zinc plated · Colour zinc · Blue zinc · White zinc · Black zinc · Black phosphate · Grey phosphate · Black oxide · Dacrotized · Ruspert · Xylan · Nickel · Bronze · Spray paint |
| Additional requests | Options |
|---|---|
| Available | Serration under head · Without washer · With bonded washer · With PVC washer · With steel + EPDM washer · With rubber washer · With head mark · With wing · Slotted + wing |
Questions we get asked about this item
When should I specify half thread?
Whenever the screw passes through a clearance hole in the top part. A full thread will bite the top part and hold the joint open.
Where does the thread start?
That is set by the grip length you need. Tell us the thickness of the top part and we will confirm.
Also in Stainless Steel Machine Screws
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Longer Hex Washer Head Tek Screws
Long hex washer head self-drilling screws in yellow zinc, for fixings that have to reach through insulation or a build-up of layers
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Pan Framing Tek Screws
Pan framing self-drilling screws — the screw used for light gauge steel framing, where studs and tracks have to be joined quickly an
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Truss Tek Screws
Truss head self-drilling screws with a washer face, supplied zinc plated.
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Truss Tek Screws (BF-153)
Truss head self-drilling screws in a yellow zinc finish.
View specificationRelated reading: self drilling vs self tapping · finishes and salt spray · materials and property classes
Quote Flat Head Half Thread Stainless Steel Screws
Send diameter, length, head, drive, material, finish and quantity. If the combination you need is not on the standard matrix, send a drawing instead.