Post Converter – Adjustable Knock-in – Round – 50.8mm

The 50.8mm Round Adjustable Knock-In Post Converter is the staircase solution for posts that need to support a wooden or custom handrail on a raking run. Like the standard knock-in version, it presses into the open top of the post by hand with no tools or fixings required — but unlike the standard version, its pivot mechanism allows the mounting plate on top to be angled to match the exact rake of your staircase, ensuring the handrail sits correctly at the right angle rather than being forced flat or left to sit at an awkward tilt.

This fitting is the key to a professional handrail transition on staircases — without an adjustable converter, fitting a timber or custom handrail to a fixed post on a raking run requires either modifying the post itself or accepting a compromised fit. The adjustable knock-in eliminates both problems, giving you a precise, clean mounting point at whatever angle your staircase demands.

The converter knocks firmly into the 50.8mm post opening and the pivot is set to the required angle before the handrail is fixed to the mounting plate above.

Specifications

• Type: Post Converter — Adjustable Knock-In
• Profile: Round
• Post Diameter: 50.8mm
• Fitting Method: Knock-in — presses into open top of post, no fixings required
• Adjustment: Pivot mechanism — mounting plate angle adjustable to match staircase rake
• Compatible With: 50.8mm round stainless steel posts
• Application: Converts post to accept wooden or custom handrail at an adjustable angle — ideal for raking staircase runs
• Finish Options: Brushed Satin | Mirror Polish
• Grade Options: 304 Stainless Steel | 316 Marine Grade Stainless Steel
• Material: Stainless Steel
• Category: Components & Fittings – Post Converters

Which Grade Should I Choose?

Grade 304 is strong and reliable, suited to internal applications and external use in non-coastal, non-corrosive environments — ideal for inland areas such as Johannesburg, Pretoria, and most non-coastal suburbs.

Grade 316 (Marine Grade) offers superior corrosion resistance and is the essential choice for coastal properties, poolside installations, and any environment exposed to salt air, moisture, or chemicals. If you are in Cape Town, the Winelands, Durban, or any coastal area, Grade 316 is strongly recommended.

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