Fasteners and fixings for construction and structural steel in Kenya
Structural bolts in grade 8.8 and 10.9, fischer anchors, resin anchors, threaded rod and roofing bolts for building sites, quoted from your list and delivered to site.
From the foundations to the roof
Hex bolts from M3 to M42 and threaded rod from M4 to M36, metric and imperial. Kenya's construction output grew 6.8% in 2025 and cement use rose 20.3%, according to the KNBS Economic Survey 2026.
Structural bolts
Grade 8.8 and 10.9 hex bolts (DIN 931/933), nuts and washers.
Bolt anchors
fischer FAZ II bolt anchors and FBS II concrete screws.
Resin anchors
fischer injection mortars with FIS A threaded rod.
Holding-down bolts
Foundation bolts and grade 8.8 threaded rod.
Roofing bolts
Roofing and J-hook bolts complete with nuts.
Site tools
Rebar binders, rotary hammers, cutting discs and levels.
Questions buyers ask
What grade of bolt is used for structural steel?
Standard beam-to-column and fin-plate connections use M20 grade 8.8 fully threaded bolts in 22 mm holes; heavily loaded joints may need larger bolts such as M24. Portal-frame eaves and apex connections use grade 8.8 or 10.9.
Which anchor works in cracked concrete?
One whose European Technical Assessment (ETA) covers cracked concrete, listed as Option 1; Option 7 covers non-cracked concrete only. fischer's FBS II concrete screw, for example, is assessed for cracked concrete and seismic use.
Galvanised or stainless near the coast?
Zinc wears faster as the air gets more corrosive: about 0.7 to 2.1 µm a year in an urban C3 environment and 4.2 to 8.4 µm in a marine C5 one under ISO 9223. Where salt or chlorides are present, choose A4 (316) stainless over A2 (304).
Do I need preloaded (HSFG) bolts?
Usually not: preloaded bolts are seldom used in buildings. They are for slip-critical joints, oversize or slotted holes and bridges, and are supplied as EN 14399 assemblies.
What do bolts and nuts cost in Kenya?
Prices come on a quote. Send the items, sizes and quantities on WhatsApp or through the website and the sales team replies with a priced quote you can accept online.
Do you deliver to construction sites?
Yes. Give the site contact and a phone number when you order. Within Nairobi we deliver by our own van or courier; upcountry orders travel by parcel service to your nearest depot. Stocked items confirmed before 2:00 pm dispatch the same working day.
Read before you order
HSS, cobalt or SDS: the right drill bit for steel, stainless and concrete
Which drill bit for mild steel, stainless, brick and concrete: HSS DIN 338, cobalt, SDS Plus and SDS Max, with speeds, sizes and what 10/100/160 means.
Socket cap, countersunk, button or grub: choosing Allen screws
The four hex socket (Allen) screw heads, what each is for, the hex key size for every metric size, and when 12.9 black beats A2 stainless.
DIN 933 or DIN 931? Full thread vs half thread hex bolts
DIN 933 is threaded to the head, DIN 931 keeps a plain shank. Which one carries shear, which one suits tapped holes, how to pick the length and grade.
Stainless, zinc-plated or galvanised: fasteners for outdoor and coastal sites
Choosing fasteners that will not rust: zinc-plated indoors, hot-dip galvanised outdoors, stainless A2 and A4 by the sea, and the mistakes that cause early corrosion.
Inch or metric? Reading bolt sizes like 1/2" x 1-1/2" and M12 x 40
How to read and order inch and metric bolts: diameter first, then length, UNC, UNF and BSW threads, and why an M12 nut will not fit a 1/2 inch bolt.
Fixing steel to concrete: wedge, sleeve or chemical anchor?
Which anchor holds steel on concrete: wedge anchors, sleeve (rawl) bolts or chemical anchors, with sizes, installation steps and when to use each.
Bolt grades 4.8, 8.8, 10.9 and 12.9 explained: what HT means
What the numbers on a bolt head mean, when an 8.8 HT bolt is enough and when to use 10.9, which nut to pair with each grade, and DIN 931 versus DIN 933.
Paste your list, get one quote.
SKUs or plain descriptions with quantities, one per line. We match each line to a stocked product and send one priced quote.
