Permanent One Way Security Fasteners
One-way security screws and fasteners, suitable for applications where the fixing will never need to be removed. One-way screws feature a head which is designed to turn in one direction only and will cause cam-out if turned the other way.
One way screws
Many of our permanent one way screws can be secured using standard tooling due to their unique design, with some also requiring security bits
If future maintenance may be required, we suggest using removable security fixings.
Please click on the links below for detailed product information, size charts, drawings and technical specifications.
We stock both permanent nuts and one way screws in a variety of sizes and materials, with non-standard specifications available to order.
Showing all 28 results
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Security Armour Rings
SKU: AR01
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Clutch Head One Way Round Security Machine Screws
SKU: CL01
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Clutch Head Raised Countersunk Security Screws
SKU: CL02
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Clutch Head Round Self Tapping Security Screws
SKU: CL03
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Clutch Head C/sunk Self Tapping Security Screws
SKU: CL04
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Clutch Head Round Security Self Drilling Screws
SKU: CL05
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Clutch Head Countersunk Security Wood Screws
SKU: CL06
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Drill Out Security Shield Anchor
SKU: HX09
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Kinmar® Security Permanent One Way Nut
SKU: KM02
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Kinmar® Security Permanent Bolts
SKU: KM04
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Kinmar® Security Permanent Sleeve Anchor
SKU: KM06
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No-Go Security Enclosures
SKU: NG01
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Pin Pentagon Pan Security Machine Screw
SKU: PP02
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Pin Pentagon Countersunk Security Machine Screw
SKU: PP03
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Sentinel Button Security Machine Screw
SKU: SE01
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Sentinel Countersunk Security Machine Screw
SKU: SE02
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Sentinel Countersunk Security Wood Screw
SKU: SE03
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Shear Nuts (Security Breakaway Nuts)
SKU: SO01
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Shear Screws (Security Snap Off Screw)
SKU: SO03
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Shear Bolt Anchor Dome Head (Sleeve)
SKU: SO04
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Shear Bolt Anchor Countersunk Head
SKU: SO05
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Shear Bolt Anchor Dome Head (Shield)
SKU: SO06
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Shear Bolts Button Head
SKU: SO07
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Shear Bolts Countersunk
SKU: SO08
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Socket Shear Bolts
SKU: SO09
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Slim Head Shear Bolts
SKU: SO10
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Security Wave Nuts
SKU: WA02