Reduced Head Knurled Body Rivet Nut
Reduced (thin) head, round knurled body, open or closed end. M3 to M12, carbon steel, zinc plated.
Rivet Nuts (Insert Nuts)
Reduced Head Knurled Body Rivet Nut, UK Type
Flat head, round knurled body, open or closed end. M3 to M16, carbon steel, zinc plated.
- Section
- Rivet nuts
- Type
- Steel rivet nuts
Overview
A rivet nut (insert nut) gives a strong, reusable thread in sheet metal, tube or plastic that is too thin to tap. It is fitted from one side with a hand or pneumatic tool. The reduced head is thin and small, so it stands only a fraction of a millimetre above the surface. Knurls on the body bite into a round hole to resist spinning. The open end lets a longer screw pass right through.
Available in M3, M4, M5, M6, M8, M10 with grip ranges from 0.5 mm to 4 mm. Each part number covers a set range of sheet thickness and has its own overall length (L), shown in the table. Dimensions follow the supplier catalogue (YLB 2025).
Specifications
| Brand | SGPFS |
|---|---|
| Part no. series | SGRKUK01OE… (open end) |
| Threads | M3, M4, M5, M6, M8, M10 |
| Grip range | 0.5 mm to 4 mm |
| Length (L) | 9 mm to 20 mm (open end) |
| Head | Reduced (thin) head, UK sizes |
| Body | Round knurled body |
| End | Open end |
| Material | Carbon steel, zinc plated (stainless steel and aluminium on request) |
Sizes & part numbers
All dimensions in mm. One row per grip range. The 2D drawing shows where each letter is measured.
| Part no. | Thread | Material | Grip range min–max | Hole size +0.1 / 0 | Body D +0.07 / −0.10 | Head B | Head K | Length L ±0.30 |
|---|---|---|---|---|---|---|---|---|
| SGRKUK01OEM390515 | M3 | C | 0.5–1.5 | 4.80 | 4.65 | 5.40 | 0.50 | 9.00 |
| SGRKUK01OEM41050520 | M4 | C | 0.5–2.0 | 6.50 | 6.35 | 7.00 | 0.50 | 10.50 |
| SGRKUK01OEM5120525 | M5 | C | 0.5–2.5 | 7.25 | 7.15 | 7.85 | 0.60 | 12.00 |
| SGRKUK01OEM6151030 | M6 | C | 1.0–3.0 | 9.60 | 9.45 | 10.30 | 0.60 | 15.00 |
| SGRKUK01OEM8161035 | M8 | C | 1.0–3.5 | 10.60 | 10.45 | 11.30 | 0.70 | 16.00 |
| SGRKUK01OEM10201040 | M10 | C | 1.0–4.0 | 12.80 | 12.65 | 13.80 | 0.80 | 20.00 |
Material: C = Carbon steel. Part number = SG + type + grade (01 carbon steel, 02 aluminium, 034 stainless steel SS 304) + end (OE open, CE closed) + thread + length + grip range. Example: SGFK01OEM6150525 = flat head knurled, carbon steel, open end, M6, length 15, grip 0.5–2.5 mm.
How it works
A rivet nut gives a strong, reusable thread in sheet metal, tube or plastic that is too thin to tap, and it is fitted from one side only. Here is how this nut goes in.
Knurled round body
The fine knurls bite into the wall of a round hole, so the nut resists spinning when the bolt is tightened. Round holes are the easiest to drill.
Choosing the grip
Each part number sets in a range of sheet thickness (the grip). Pick the part whose grip covers your sheet: too thin and the collar will not clamp, too thick and the nut cannot fold. The hole size is in the table.
Open end
The thread runs right through, so a longer bolt can pass through the nut.
Head
Reduced head: a thin, small head that stands only a fraction of a millimetre above the surface.
Setting tools
Set with a hand, pneumatic-hydraulic or battery tool fitted with the matching mandrel. See our riveting tools.
Key features
- UK hole and body sizes
- Knurls resist spin-out
- Through thread
Applications
Electrical panels and enclosuresAutomotiveFurnitureSolar structures
Need a size, grade or finish not listed?We also supply special and non-standard parts to drawing.Send enquiry
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Flat head, semi-hex body, open or closed end. M3 to M12, carbon steel, zinc plated.
Flat Head Full Hex Body Rivet Nut
Flat head, full hex body, open or closed end. M3 to M12, carbon steel, zinc plated.