Extension arms for barbed wire, straight or bent at an angle of 40° to 45° from the vertical.Extension arms for attachment of barbed wire.Short droppers shall be of a length to extend 25 mm beyond the line wire and at least 25 mm beyond the barbed wire. Short droppers for barbed wire: mild steel short droppers 25 mm × 5 mm thick, holed for the attachment of the bottom row of barbed wire and the top line wire.And holed for the attachment of the top three rows barbed wire. Hot dip galvanized Long droppers for barbed wire: mild steel long droppers 25 mm × 5 mm thick, more than 0.45 m long.For fastening down the bottom of plastic coated chain link fencing, use plastic coated hair pin staples with core diameter 3.55 mm and outside diameter 4.75 mm wire, bent outwards to secure anchorage.For fastening down the bottom of galvanized wire mesh fencing, use zinc coated hair pin staples with 3.55 mm diameter wire and 30 mm leg length, bent outwards to secure anchorage.For fixing barbed wire to extension arms or droppers, use galvanized hair pin staples with 3 mm diameter and 30 mm leg length.or 20 mm × 5 mm for 40 mm chain link mesh.25 mm × 5 mm for 50 mm chain link mesh.Stretcher bars, mild steel, flat, holed for attaching to cleats or to straining fittings by 8 mm bolts.Winding brackets for posts: mild steel, flat, 25 mm × 3 mm and fitted with a 12 mm winding bolt, with a friction type, ferrule or ratchet winder. Cleats: mild steel angle, 50 mm × 50 mm × 6 mm.Eye bolt strainers: 250 mm long bolts of at least 9.50 mm diameter, with an eye at one end.Post base plates and caps, bolts, nuts and washers.Chain link fence fittings: (zinc coated in accordance with BS EN 10244-2).Wire: high tensile 25 mm, aluminum/zinc wire, breaking load 7700 N.Material: galvanised steel, stainless steel (for extremely corrosive environments).Style: flat razor wire or concertina razor wires.Zinc and zinc-alloy coated steel barbed wire conform to BS EN 10223-1 (see table 4).Posts for use with barbed wire shall have integral extensions or be holed for the attachment of extension arms. Concrete components: concrete posts and struts.Wires: mild steel line wire, stirrup wire, tying wire, barbed wire (conform to BS EN 10223-1).Chain link mesh width: 2.4 m, or 2.7 m (buried 0.3 m).
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