Factory photograph of allen head tek screws. Finishes shown are examples — all fifteen catalogue finishes are available on this item.
Allen Head Tek Screws
Allen head self-drilling screws — a hex socket drive rather than a hex head. The driver engages inside the head, so the fixing sits low and cannot be turned with an open spanner once it is in.
- M1.4-6.3(0#-14#)
- 6mm-300mm
- Internal hex socket drive, low profile head
- IFI, DIN, JIS, GB or drawing
- Carbon steel or stainless A2 / A4 / 410, 6mm–300mm
Specification
- Item code
- BF-135
- Standard
- IFI,DIN,JIS,GB,Special Design
- Size Range
- M1.4-6.3(0#-14#)
- Length Range
- 6mm-300mm
- Material
- Carbon steel and stainless steel A2 A4 and 410
- Product group
- Self Drilling Screws / Tek Screws
Item code BF-135 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
Why choose a socket drive over an external hex?
Two reasons: the head is lower, which matters where something has to pass over it, and it resists casual removal because the tool has to go inside the head.
Is the drive available on other heads?
The drive and the head are specified separately. Phillips, Pozidriv, square, square-plus-Phillips, Torx and slotted are all on the same matrix.
Also in Self Drilling Screws / Tek Screws
See all
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
View specification
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
View specification
Truss Tek Screws
Truss head self-drilling screws with a washer face, supplied zinc plated.
View specification
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 Allen Head Tek 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.