Ancon KSN Anchor Box

Manufacturer guidance

KSN Anchors:

There are eight standard anchors in the KSN range. They are manufactured from highly reliable Cr-Mo alloy steel with a minimum 15% elongation. The head is formed by hot forging to minimize material usage and improve the strength characteristics. The anchor is subsequently machined to incorporate a metric thread. Independent tests have verified the direct pull out strength of the anchors. UK CARES have independently assessed the KSN Anchor.

The Bartec Plus system produces a full strength joint. The bar end is cut square and enlarged by cold forging. This increases the core diameter of the threaded portion of the bar to ensure that the strength of the bar is maintained. A parallel metric thread is rolled onto the enlarged end. A 12 mm bar is provided with an M16 thread, a 16 mm bar with an M20 thread and a 20 mm bar with an M24 thread.

Manufacturer guidance

KSN Anchors:

KSN12M:

• Nominal external diameter: 22 mm.
• Metric thread: M16 x 2.0 mm.
• Nominal head width: 46 mm.
• Nominal head A/F: 40 mm.
• Anchor length: 150 mm.
• Embedment depth: 159 mm.

KSN12S:

• Nominal external diameter: 22 mm.
• Metric thread: M16 x 2.0 mm.
• Nominal head width: 46 mm.
• Nominal head A/F: 40 mm.
• Anchor length: 115 mm.
• Embedment depth: 124 mm.

KSN16L:

• Nominal external diameter: 28 mm.
• Metric thread: M20 x 2.5 mm.
• Nominal head width: 61 mm.
• Nominal head A/F: 53 mm.
• Anchor length: 190 mm.
• Embedment depth: 199 mm.

KSN16M:

• Nominal external diameter: 28 mm.
• Metric thread: M20 x 2.5 mm.
• Nominal head width: 61 mm.
• Nominal head A/F: 53 mm.
• Anchor length: 160 mm.
• Embedment depth: 169 mm.

KSN16S:

• Nominal external diameter: 28 mm.
• Metric thread: M20 x 2.5 mm.
• Nominal head width: 61 mm.
• Nominal head A/F: 53 mm.
• Anchor length: 130 mm.
• Embedment depth: 139 mm.

KSN20L:

• Nominal external diameter: 32 mm.
• Metric thread: M24 x 3.0 mm.
• Nominal head width: 75 mm.
• Nominal head A/F: 65 mm.
• Anchor length: 230 mm.
• Embedment depth: 239 mm.

KSN20M:

• Nominal external diameter: 32 mm.
• Metric thread: M24 x 3.0 mm.
• Nominal head width: 75 mm.
• Nominal head A/F: 65 mm.
• Anchor length: 190 mm.
• Embedment depth: 199 mm.

KSN20S:

• Nominal external diameter: 32 mm.
• Metric thread: M24 x 3.0 mm.
• Nominal head width: 75 mm.
• Nominal head A/F: 65 mm.
• Anchor length: 150 mm.
• Embedment depth: 159 mm.

Bartec Plus Continuation Bars:

Unlike re-bend continuity systems where bar lengths are restricted to the box dimensions, there is virtually no restriction on continuation bar length with KSN Anchors. This system easily accommodates the longer lap lengths now required by BS EN 1992:1-1 (Eurocode 2). Ancon KSN Anchors are designed for use with 12 mm, 16 mm and 20 mm diameter grade B500B or B500C reinforcing bar, threaded with a Bartec Plus metric thread, supplied by Ancon. No on-site bar straightening is required.