Dorma BS Blade Stop Spacer
The Dorma BS is the blade-stop spacer. Price List 38 lists it at $40 for P86, PHB, and PD. The 8600 brochure (printed p.30) sizes the drawing at 3-1/2 x 1 x 1/2 in and says it provides clearance for an applied blade stop.
The 7400 note says BS mirrors the 8600 part. This page is the spacer only -- it does not include P86, PHB, or PD.
Do I use BS or BSHD?
BS is the spacer for standard parallel brackets (P86, PHB, PD). BSHD is the heavy-duty spacer for DS and SPA arms, used with the spacer that ships on the arm.
What does the spacer do?
The 8600 brochure: this block provides adequate clearance for the applied blade stop on a cased frame.
Institutional Grade Features and Benefits
- Standard PA only: P86 / PHB / PD -- not DS / SPA (that is BSHD).
- 3-1/2 x 1 x 1/2 in: 8600 brochure printed p.30.
- Cased frames with blade stops: brochure use.
- Finish on this listing: painted 689 / 693 / 695.
- This listing: does not include the closer body, arm, or cover.
Applications
Cased-frame openings with an applied blade stop that use a Dorma P86, PHB, or PD parallel-arm bracket.
Which bracket or spacer is this?
Every row below is from the glossary plates_brackets section, Price List 38, or the 8600/7400 brochure. This listing is BS only.
| Plate | Printed size and use |
|---|---|
| P86 | Parallel arm bracket. Standard with NHO and plunger-HO parallel arms. |
| PD | Parallel drop bracket. NHO parallel (AR / AO8 only) to clear a surface stop/holder. |
| PFT | Parallel flush transom bracket. Use when flush transom blocks P86 or PHB. |
| NFHD | Narrow-frame HD bracket for DS/SPA when frame depth is under 4-1/2 in. |
| FTHD | Flush-transom HD bracket for DS/SPA when soffit bracket will not fit. |
| BS (this listing) | Blade-stop spacer for P86, PHB, and PD on cased frames with applied blade stops. |
| BSHD | Heavy-duty blade-stop spacer for DS/SPA, used with the arm spacer. |
| BP86C | Conversion plate. Replaces a legacy DORMA 7600 footprint with 8600. |
| DP74 | 9-3/4 x 3-1/2 in. 7400-only drop plate. Top jamb when ceiling clearance is at least 1-3/4 in. |
Technical Specifications
Facts below are from the Dorma glossary (plates_brackets, cover_codes, mounting_templates, sizes.min_door_rail) and Price List 38 accessories. This plate is not the closer. UL/cUL, ANSI/BHMA A156.4 Grade 1, and the 25-year closer warranty apply to the 7400/8600 closer body, not to the plate.
Technical Details
| Feature | Details |
|---|---|
| Model Number | Dorma BS |
| Part Type | Blade stop spacer |
| Size | 3-1/2 x 1 x 1/2 in (8600 brochure p.30) |
| Cover | Not a cover -- accessory plate / bracket / spacer |
| Series | Dorma 8600 and 7400 (BP86/DP86 family also used on 7400) |
| Printed use | P86, PHB, and PD on cased frames with applied blade stops (PL38 / brochure p.30) |
| Factory templates | |
| Finish with BHMA code | Painted 689 / 693 / 695 |
| Factory list (PL38) | PL38 accessories: BS Blade stop spacer (P86, PHB, and PD), list $40 |
| SKU prefix | CLPBS-* |
| Source | configs/dorma/dorma_glossary_2026.json ; PL38 accessories |
| General - US Finishes | 689 - Spray Alumimun or 693 - Spray Black or 695 - Spray Dark Bronze |
| Series | Dorma - 7400 Series or Dorma - 8900 Series |
| Brand | Dorma |
| Series | Dorma - 8600 Series |
| Closer Part Type | Brackets & Feet |
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