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 In the Fencing industry and especially 'security fencing', it is essential that the fixings used are a security type to help prevent and deter vandals & trespassers from tampering with the fencing and or entering a restricted area.In most security fencing applications galvanised Shear Nuts are used in combination with saddle bolts, to prevent the removal of the fixing or application. In some applications where security is at a premium, security Shear Bolts are used instead of saddle bolts, making both fasteners 1-way permanent security fixings. Shear nuts are stocked in Steel Zinc Plate, Galvanised Steel and Stainless Steel from M6 - M24 with other sizes available to order and Shear Bolts are generally made to order, although Fastenright Ltd do have stock of certain sizes.  In addition to security shear nuts and shear bolts, Fastenright Ltd also stocks a superior alternative in Kinmar® permanent security nuts and Kinmar® permanent security bolts. The Kinmar® product is superior to the shear (breakaway) product as it uses a specially designed tool to tighten. This means that the Kinmar® security products can be tightened up to the desired level and are not restricted or governed by torque like shear products that snap off when a certain torque level is achieved. This advantage is also furthered by the ability to re-tighten the nut  should it come loose through vibration or ware.The Kinmar® permanent nuts are available in Steel Zinc Plate, Galvanised Steel and Stainless Steel from M5 - M12 with other sizes available to order. The Kinmar® permanent bolts are stocking in only one size M8 x 40, which is the standard size for bolts within the fencing industry. |
