Factory photograph of black high tensile bolts. Finishes shown are examples — all fifteen catalogue finishes are available on this item.
Black High Tensile Bolts
High tensile bolts in a black finish, supplied with nut and washer. Black phosphate, black zinc and black oxide are three different coatings with three different corrosion lives — we quote the one that matches the duty, not just the colour.
- M0.8 – M42
- 2mm – 3000mm
- Black phosphate, black zinc or black oxide
- Grades 8.8, 10.9, 12.9
- Supplied with matching nuts and washers
Specification
- Item code
- BF-161
- Product group
- High Tensile Bolts
Item code BF-161 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
Which black finish lasts longest outdoors?
Black zinc, because there is a real zinc layer doing the work. Black oxide is essentially an appearance finish with an oil film.
Can I get the nut and washer in the same finish?
Yes — matching the finish across the assembly is the normal request and we quote it as one item.
Also in High Tensile Bolts
See all
High Tensile Bolt & Nut Assemblies
High tensile bolt and nut assemblies, quoted as a set rather than three line items.
View specification
Zinc High Tensile Bolts
High tensile bolts in a zinc plated finish.
View specification
High Tensile Bolts (BF-143)
High tensile bolts in grades 8.8, 10.9 and 12.9 for steel construction and building connections.
View specification
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 specificationRelated reading: self drilling vs self tapping · finishes and salt spray · materials and property classes
Quote Black High Tensile Bolts
Send diameter, length, head, drive, material, finish and quantity. If the combination you need is not on the standard matrix, send a drawing instead.