Fisher Alvin Key Clamps are are manufactured from high quality galvanised steel. We have a wide range of key clamps as well as galvanised steel tubing from our extensive stocks which have been specifically designed to meet an ever-increasing number of needs. Whether your requirement is for a steel handrail to run alongside a ramp or steps, or a guard rail to provide protection either in a hazardous area or from a height the key clamp system will give you exactly what you are looking for.
With an increasing number of new uses emerging for key clamps we also support a large number of shop fitters, interior designers, gardeners and farmers in the design and construction of many bespoke solutions – check out our new brochures »
Our Key Clamp Handrail Kits are the perfect solution for implementing any handrail requirement and are always held in stock ready for nationwide delivery.
Provides 90º ‘T’ connection between two tubes. Used for the joint between end post and lower rail(s) when handrail is straight and level. Also for a top ‘T’ joint on a guardrail. Cannot join tube in top of ‘T’, use the A4 when this is required.
Provides a 90º ‘T’ connection between two tubes. Used for the joint between a top rail and a vertical post. Allows tubes to be joined in the top part of the ‘T’. When used in guardrailing the A22 will compliment this for lower rail(s).
This is a 90º elbow joint. Used frequently for the termination of the top rail to the last post of a handrail. Also used for turning the rails around a 90º corner.
Two tubes can be joined with an angle range of between 105º - 165º. Joins the angled rail from a ramp or steps to level rails on a landing. Starts an angled rail from top of a first post. Can be used for obtuse angle change in a handrail.
Provides a rigid joint for two tubes of the same diameter. Joints to be 150mm to the nearest support. Do not use for joining two tubes subject to extreme loads, i.e. a vertical post member supporting a guardrail. Use A9 for a streamline joint.
Provides a streamline flush joint in two tubes of the same dia. with a max. wall thickness 3.2 mm. Joints to be 150mm to the nearest support. Not for joining tubes that are subject to extreme loads, or where a direct tensile load is applied.
A four holed plate providing a rigid fixing for handrails that terminate on walls. Ideal for securing garment railing structures to ceilings etc. Not to be used as structural fixings for supporting a vertical post on guardrails. Use A12 for this.
Specific base plates designed for either 42.4mm or 48.3mm that will fix directly to the floor but will also accept a standard kick plate to the base. Has a number of applications but is particularly popular for fixed hand rail systems on roof or mezzanine areas where there is a need to avoid the drop of hazardous materials or tools from above
Provides a structural base plate for the support of a vertical post typically for a guardrail. Two socket set screws give a rigid structural fixing. Recommended that the fixing down bolts be in line with the applied load.(i.e 90º to the rails)
Base for vertical posts for side mounting. Posts stand off from structure. Tube cannot pass through this clamp. Access to top fixing hole restricted, a threaded stud type bolt projecting a max. 25mm from structure needs to be fixed first.
Provides a structural base plate to a vertical post that is required to be side mounted. This clamp is virtually flush to structure it is being fixed to. The tube does not pass through the clamp.
A ground socket that is cast into concrete and is flush with the finished ground level. Allows posts to be inserted and retained with a locking set screw. Posts can be easily removed at any time.
Provides a three way 90º corner joint. Used frequently for a top rail 90º turn where a post is present. Compliment this with A20 for a lower rail. Also used for corner joints on structures such as work benches, tables etc.
Generally used in pairs (as shown). Allows angles between 90º - 180º. Used to change direction of rails in the same plane. Requires a central tube at the point of angle change. Consider the A7 as an alternative for the angle change.
Used for a 90º connection of a lower rail(s) to an intermediate vertical post, the vertical post must remain continuous while the rail is joined in each side of the clamp. Usually complimented with the A4 when used for guardrailing.
Variable angle clamp enables tubes to be connected between angles 30º - 45º. Used for angled lower rail(s) joint to a vertical post on stairs. A3 can be used in association for top rail connection. A46 swivel clamp is an alternative.
Frequently used in structures that have many uprights, such as racking. This clamp ties a centre upright, which passes through the central hole, with four horizontal tubes. All connections are at 90º to each other.
Gives 90º crossover joint. Used in guardrail installations. Rails are passed through in long lengths and joined using the A8 or A9. Can be used for connection of a horizontal racking member to a vertical support, garment rails etc.
This clamp is used on racking for the 90º connection of a vertical support to a horizontal load carrying rail. The rear outlet is available for a horizontal tie across the section.
Offset handrail spigot clamp accepts tube through top of the ‘T’, the spigot inserts directly into another clamp. Used for off setting rail from a post, can be rotated through 360°. Used with A6 and A2. Also use with A10 for wall mounted rail.
Used to carry handrails along walls or fix structures back to walls. Tube passes through in long lengths, can be joined using the A8 or A9. Can be slid down a post and used for connecting a kick plate. Also for fixing hoardings, signs etc.
This clamp is a variant of the A38 where the flange is flush with the edge of the clamp. This allows the user to attach sheets of wood metal or glass to a structure without the need to cut it to fit within the tubes. Typical uses include fixings for kick-boards, steps and work surfaces
This is a part component of the A44. It can be used on its own for the insertion of signs and hoardings within a tubular frame, the connection of chain and ‘D’ shackles and tensioning of yachting wire balustrades etc.
This clamp is a variant of the A36 where the flange is flush with the edge of the clamp. This allows the user to attach sheets of wood metal or glass to a structure without the need to cut it to fit within the tubes. Typical uses include fixings for kick-boards, steps and work surfaces
A flexible variable angle connector. Used for an angled top rail connection to a post. Use if the angle required is not known. Also used as bracing struts for racking etc. Reducing combinations are available throughout the size range.
A flexible variable connection used for an angled lower rail(s) joint to a post. Changes horizontal rails to angled rails at top of ramp/stairs. Also as bracing struts for racking. Reducing combinations available throughout the size range.
A 90º flexible variable angled connector for posts on a corner. Changes horizontal rails to angled rails, at the top of a ramp/stairs. Use as bracing struts for racking etc. Reducing combinations available throughout the size range.
A part component of the A52. Used on its own it is ideal for a wall fixing for a chain attachment with a ‘D’ shackle. Can be used to take steel straining wires etc. Can be fixed to floor to provide fixing point for mesh panels/kick plates.
Used for an angled wall fixing plate or a strut for added strengthening of a post. Not to be used as an angled base plate. Consider the G12. Alternatively use A12 and bend the vertical tube to the upright position.
Used for the added support of a clamp that may be subject to severe loading, in excess of the maximum permitted slip load of it's socket set screws, on racking etc. Can support another clamp, which doesn't have it's socket screw tightened.
This clamp is generally used on a vertical post where chain is connected for an access opening in a guardrail. The chain is easily removed from the A64, use an A36 and a ‘D’ shackle for the opposite end connection.
This clamp can be added to an existing structure. It provides a 90º crossover connection and is an alternative to the A28 but is available in more reducing size variations. It is of mild steel manufacture.
Used to retain mesh panels within a guardrail. Used without the ‘horseshoe’ end they can secure other types of infill with a max. thickness of 10mm, such as perspex/plywood. Can be added to an existing structure. Space 450mm apart.
Used to retain mesh panels within a guardrail. Used without the ‘horseshoe’ end they can secure other types of infill with a max. thickness of 10mm, such as perspex/plywood. Can be added to an existing structure. Space 450mm apart.
Electro-plated case hardened socket screws. Two different thread sizes and some are slightly longer than others. Clamps are supplied with these fitted. If spares or replacements are required please provide type and size of clamp they are required for.
Used for the joint between the end post and the lower rail(s). Also can be used for the top ‘T’ joint. Tube cannot be joined in the top part of the ‘T’ use the G4 when this is required.
Used for the joint between the top rail and vertical post. Allows tubes to be joined in the top part of the ‘T’. Use the G22 to compliment this for the lower rail(s).
Provides a structural base plate for the vertical post. Due to the design this base plate can only be fixed down with the fixing holes in line with the applied load (i.e.90º to the rails.)
Used for the connection of lower rail(s) to an intermediate vertical post, the vertical post must remain continuous while the rails are joined in each side of the clamp. Complimented with the G4 for the top rail connection.
