M8 x 1.25p Metric Coarse Nickel Plated JCB Furniture Connector Socket (5mm Key) Screw Low Tensile Class 4.6

About Furniture Connector JCB Bolts

Furniture Connector JCB Bolts (also called Joint Connector Bolts or Furniture Connector Screws) are flat-head bolts with an internal hex drive, designed to mate with a barrel nut (cross dowel) in flat-pack and knock-down furniture. The low-profile head sits flush in a counterbored hole on the visible face of the assembly while the shank passes through the panel and threads into a barrel nut sitting in a cross-bored hole in the mating piece. The result is a clean, demountable joint suitable for cabinetry, joinery, shop fittings and any flat-pack assembly that needs to be disassembled and re-assembled.

Recommended use Flat-pack and knock-down furniture, joinery, cabinet making, shop fittings, and any indoor assembly where the fastener head is visible on the finished surface.

Frequently Asked Questions

Material & Coating

Nickel Plated Carbon steel with an electroplated nickel layer. The nickel coating gives a bright silvery cosmetic finish and useful corrosion protection for indoor service. Standard finish on furniture connector bolts where the head sits on a visible face of the assembled piece.

Important Indoor or dry-environment use only. Nickel plating is decorative and offers limited corrosion protection in wet, coastal or chemical service. For outdoor or wet assemblies use the matching A2-70 G304 stainless variant.

Class Metric fasteners are classified as class 2, 4.6, 8.8, 10.9, 12.9, 14.9. See the head marking chart and full strength table.

Thread Pitch & Terminology

Thread Pitch (Metric) Metric fasteners measure thread pitch as the distance between thread peaks, expressed in millimetres. Metric also branches into three series: coarse (the default; widest tolerance, easiest to tap), fine (a tighter pitch for higher clamp load or thinner walls), and extra fine (the tightest pitch, used for thin-wall tube, precision instruments, and aerospace fittings where vibration loosening must be minimised). Always match the series as well as the size - a metric fine nut will not engage a metric coarse bolt of the same diameter, and an extra fine nut will not engage either. This product has a 1.25mm coarse pitch, meaning the peaks are 1.25mm apart.

How to Measure

Fastener Length This product has a head that sits on top of the material, so the length is measured from directly under the head to the tip of the thread. The head itself is not included in the size.

Thread Length On a screw the thread length runs from the start of the unthreaded section (called the shank) to the end of the thread. To view the thread length for this product, select a length above.

Resources

Pricing & Delivery

Includes GST, a Tax Invoice and Free Standard Delivery anywhere in Australia.

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Disclaimer

Technical data Researched and compiled from numerous industry sources for the sole purpose of providing basic information. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person, and Bolt and Nut Australia is not responsible for any loss, claim or damages arising therefrom. In developing this information, Bolt and Nut Australia has made a determined effort to present it accurately.

Measurements Sizes are taken from supplier catalogues or hand-measured and should be used as a guide. Minor variation between batches is normal. Stock is sourced from various suppliers, so differences may exist between batches in thread length, markings, appearance or finish.

Product Photos & PDF Data Sheets Represent the product type, not exact size. PDFs are a reference guide only. Specifications may change without notice.

If you see any problems with any of our specifications or you require additional information please contact us.