Structural bolts and fastener kits

Scope of supply

Every PEB is held together by bolts and screws, and a missing box on site can stop erection. World Steel supplies fastener kits matched to the bolt lists on the erection drawings, with an allowance for site loss. The technical background is in structural bolts and cladding fasteners.

• High-strength structural bolts with nuts and hardened washers for frame end-plate and splice connections.
• Machine bolts for purlin, girt and bracing connections.
• Self-drilling and self-tapping screws with bonded sealing washers for cladding and trims.
• Stitching screws, rivets, and fasteners for accessories.
• Bracing rod fittings: turnbuckles, hillside washers and nuts.

Options and variants

Bolts are normally hot-dip galvanized for exported buildings; A490 / 10.9 bolts are not hot-dip galvanized because of hydrogen embrittlement risk and are supplied plain or with an approved coating. Cladding screws are specified by corrosion class (for example AS 3566.2 Class 3 or 4) and by drill point capacity; stainless or bi-metal screws are used on aluminium or in severe environments. Brands include SFS, EJOT and Hilti.

Materials, documentation and packing

Each lot is supplied with the manufacturer's inspection certificate (EN 10204 3.1 or equivalent), including proof load, hardness and coating results. Fasteners are packed in sealed, labelled boxes by grade, diameter and length, cross-referenced to the bolt list for each connection, and loaded in the first container with the frames. A typical spare allowance of a few percent is included for small fasteners. See bolted end-plate connections for installation methods.

Compliance by market

Cladding sundries kit

Alongside structural bolts, every building needs a sundries kit to complete the envelope. Missing sundries are a common reason for idle crews, so they are listed item by item on the packing list:

See sundries: sealants, closures, rivets and tapes and structural bolts and cladding fasteners.

How to request a quotation

A quotation can be prepared quickly when the enquiry states the project location and the code to be used. Please send:

1. Bolt lists or connection drawings, or the building to be supplied.
2. Bolt standard, grade and finish required.
3. Cladding material and thickness, and site corrosivity.
4. Spare allowance and packing preferences.

Fastener kits are usually supplied within a PEB kit or with the primary framing package, and can be ordered separately under the accessories scope through the export supply team.