Harsh Precious Metals Pvt. Ltd.

The Silicon Nut
in 9Kt Gold

Experience next-generation earring backs designed with 9Kt gold durability and a precision-molded silicon core for secure, daily-wear comfort.

View Specs Open Reports
High-quality render of the Silicon Nut in 9Kt Gold

Introduction

Product Overview

The Silicon Nut in 9Kt gold with a precision-molded silicon insert that grips the earring post securely while staying comfortable for daily wear. It is offered in three thickness variants, detailed below.

9Kt Gold Scroll

Ensures high-end jewelry compliance and luxurious finish.

Precision Insert

Molded silicon center that creates a firm grip without slip.

Macro display showing silicon nut mounted on earring post

Technical Details

Product Specifications

Product Code Dimensions (W x H x T) Gold Wt/pc
(2026-27)P00163 6.30 x 5.00 x 0.10 mm 0.0328 gm
(2026-27)P00164 6.30 x 5.00 x 0.12 mm 0.0392 gm
(2026-27)P00165 6.30 x 5.00 x 0.15 mm 0.0495 gm
(2026-27)P00163
Dimensions6.30 x 5.00 x 0.10 mm
Gold Wt/pc0.0328 gm
(2026-27)P00164
Dimensions6.30 x 5.00 x 0.12 mm
Gold Wt/pc0.0392 gm
(2026-27)P00165
Dimensions6.30 x 5.00 x 0.15 mm
Gold Wt/pc0.0495 gm

Quality Standards

Reliability Testing Parameters

Surface Inspection

  • Surface Scratches
  • Cracks
  • Porosity
  • Shape
  • Stamping Details
  • Silicon Outer Surface checks

Dimensional Inspection

  • Width: 6.30 mm
  • Height: 5.00 mm
  • Thicknesses: 0.10 mm, 0.12 mm & 0.15 mm

Stamping Sign & Position

  • 9K @ 12’o Clock Position

Functional Inspection

  • On-Off Cycle Test
  • 300-cycle On-Off test, performing a dead weight holding test of 10 g, 15 g, and 20 g after every 100 cycles for samples of each thickness
  • Holding Time: 30-40 Sec per dead weights

For each thickness, a sample size was 20 pieces. Functionality testing was conducted on 4 pieces from each sample, and the Reliability Test Records are attached for reference.

Comfort & Grip Assessment

Silicon Hardness

HPM Sample (Our Product)

60 A

Shore A Durometer rating optimizes comfortable daily wearing elasticity and secure post friction holding capability.

Japan Sample

66 A

Stiffer Shore A durometer hardness. Offers rigid post grip but is less yielding for regular daily earlobe insertion and removal.

Laboratory Proof

Testing Videos

Official Documentation

Testing Reports

Reliability Test Records

Click Open PDF to view details
Download

Hardness Testing Report

Click Open PDF to view details
Download