RS PRO range of captive stud through bolt anchors which are made of A4-316 grade stainless steel. This through bolt is suitable for use in concrete with a compressive strength greater than 20N/mm².
Through bolt anchors are one of the most common fixing bolts. They are designed to fix a component to concrete, brick and natural stone. Available in a range of lengths and sizes to accommodate a variety of applications, these through bolt anchors ensure a secure fixing suitable for medium to heavy-duty loads.
Stainless steel through bolt range includes the following sizes:
622-1922 - M8x50
622-1944 - M8x75
622-1950 - M8x95
622-1966 - M10x85
622-1972 - M10x125
622-1994 - M12x85
622-1988 - M12x100
622-2004 - M12x145
622-2010 - M16x125
622-2105 - M16x175
RS PRO have a great range of masonry plugs, anchor through bolts to meet all your fixing requirements.

High performance captive stud through bolt anchor
Throughbolt is a torque controlled anchor suitable for use in non-cracked concrete over C20/25
Available in a range of sizes
ETA option 7 approved
Fast and secure fitting
A4-316 grade stainless steel - corrosion resistance
Suitable for use in concrete over 20N/mm²

Through Bolts are ideal for use in medium weight applications in brickwork, block work and hard masonry. Through fixing allows drilling through pre-positioned fixture. Suitable for non-cracked concrete and structural applications such as:
Outdoor seating
Handrails
Barriers
Warehouse racking
Facade systems

FAQs
What are through bolts used for?
Through bolts are an ideal fixing to be used to attach medium to heavy duty objects to concrete.

What other types of through bolts are there?
There is a range of through bolt fixings to suit a variety of applications such as:

• Steel through bolts
• Stainless steel through bolts
• BZP through bolts
• Galvanised through bolts
• Hanger through bolts

How to insert a through bolt/anchor fixing
• Before attempting a through bolt fixing it is essential that you identify the drill bit size you need and the depth of the hole required
• Once this is established, a hole can be created using the drill ensuring that any dust and debris is cleaned out ready for the anchor to be inserted
• Next screw the washer on to the top of the through bolt until it is flush with the bolt
• Insert the through bolt into the hole, giving it a gentle tap with a hammer if required until it reaches the end of the hole
• Once inserted you can begin tightening the nut on the anchor until you it clicks. Be careful not to add too much torque as this can affect the quality of the fixing.
• Finally remove the nut and washer and the through bolt will be ready to use

Can you remove a through bolt fixing?
Through bolt fixings are not designed to be removed once inserted as this can cause damage to the base material and can create a hole. However, if required the anchor can be sawed off with a hacksaw.

Why RS PRO?
RS PRO is our own brand range and brings you a wide range of high-quality, great value products offering you more choice. Trusted by engineers all over the world, every part of every RS PRO product has been rigorously tested against demanding industry standards; they’re only given the RS PRO seal of approval if we’re confident of their exceptional quality, which means you can be confident too.