Screw IS-D5x20 FS40, FS40C

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STIHL Screw IS-D5x20 - Genuine OEM Flanged Fastening Screw - 0000 951 1100 The STIHL Screw IS-D5x20 (part number 0000 951 1100) is a genuine OEM flanged fastening screw measuring 5 mm diameter x 20mm length (approximately 0.2" x 0.8"), used to secure covers, guards, housings and rewind starter assemblies across an exceptionally wide range of STIHL handheld power tools and garden machinery. Manufactured from durable zinc-plated steel with a self-tapping thread and flanged head profile, it provides a tight, vibration-resistant hold suitable for routine servicing, repairs and replacement of missing, stripped or corroded fasteners. This screw is compatible with well over 100 STIHL models — including the FS 38, FS 40, FS 56, FS 250, HS 81, HT 75, KM 55, MS 192 and MS 194 series — spanning brushcutters, hedge trimmers, pole pruners, blowers, earth augers, multi-tool powerheads and cut-off saws. See the full Fits Models breakdown below, organised by machine type, to confirm compatibility. Available from Gustharts, an authorised STIHL dealer with UK stock ready to ship. Key Features Genuine STIHL OEM fastener — manufactured to original specification for correct thread pitch, flange diameter and length tolerance Part number 0000 951 1100 — also referenced as 0000-951-1100 and 00009511100 5mm x 20mm dimensions — approximately 0.2" x 0.8", suited to compact fixing points across the STIHL range Flanged head design — integrated flange spreads clamping load over a wider bearing surface on plastic housings Self-tapping thread — cuts cleanly into the original housing material for a secure, repeatable fit Zinc-plated steel construction — corrosion resistance for outdoor and workshop environments Also used as a recoil starter screw — commonly secures rewind starter housings and fan housings on compatible models Suitable for mixed fleets — one part number covers an unusually broad range of machine families, simplifying spares stock for workshops Technical Specification Brand STIHL Product Type Flanged Fastening Screw / Recoil Starter Screw Designation IS-D5x20 Manufacturer Part Number 0000 951 1100 Alternate Part Number Formats 0000-951-1100, 00009511100 Dimensions 5mm diameter x 20mm length (approx. 0.2" x 0.8") Head Type Flanged Thread Type Self-tapping Material / Finish Zinc-plated steel Platform Compatibility 110+ STIHL models across brushcutters, hedge trimmers, pole pruners, blowers, earth augers, multi-tool powerheads and cut-off saws. See Fits Models below. Part Type Genuine OEM Replacement Part Why Choose a Genuine STIHL Fastener? It's tempting to treat a small screw as an inconsequential part of an order, but on STIHL's plastic housings, fastener specification matters more than it appears. The flange on this screw spreads clamping load over a wider bearing surface than a standard pan-head screw, reducing the risk of the head sinking into or cracking the surrounding plastic over repeated tightening. The self-tapping thread is cut to a pitch and depth matched to the original moulded thread in the housing — a generic M5 screw with a slightly different pitch can cross-thread on the first reinstallation and strip the housing on the second, turning a 50p part into a cracked cover. This is particularly relevant for workshops and fleet operators. Because this single part number covers such a broad range of machine families — brushcutters, hedge trimmers, pole pruners, blowers, multi-tool powerheads and cut-off saws — it's a sensible item to keep a small stock of for routine servicing, since covers and starter housings are removed and refitted repeatedly over a machine's working life and these are among the most commonly lost or stripped fasteners during servicing. Fits Models This screw is compatible with the following STIHL models, grouped by machine type. Always confirm your exact model designation before ordering. Brushcutters, Strimmers & Clearing Saws (FS series): FS 36, FS 38, FS 40, FS 40 C, FS 44, FS 45, FS 45 C, FS 45 L, FS 46, FS 46 C, FS 50, FS 50 C, FS 55, FS 55 C, FS 55 R, FS 56, FS 56 C, FS 56 R, FS 70 C, FS 70 R, FS 70 RC, FS 120, FS 120 R, FS 200, FS 200 R, FS 250, FS 250 R, FS 300, FS 350, FS 380, FS 400, FS 450, FS 480 Battery Brushcutters (FSA series): FSA 60 R, FSA 86 R Hedge Trimmers (HS series): HS 45, HS 46, HS 46 C, HS 52, HS 56, HS 56 C, HS 81, HS 81 R, HS 81 RC, HS 81 T, HS 81 TC, HS 82, HS 86, HS 86 R, HS 86 T, HS 87 Battery Hedge Trimmers (HSA series): HSA 94, HSA 130 R, HSA 130 T Long-Reach Hedge Trimmers (HL / HLA / HLE series): HL 45, HL 56 K, HL 75, HL 75 K, HL 90, HL 90 K, HL 95, HL 95 K, HL 100, HL 100 K, HL 135, HL-KM, HL-KM 0°, HL-KM 0-135°, HLA 135, HLA 135 K, HLE 71, HLE 71 K Pole Pruners (HT / HTA / HTE series): HT 70, HT 70 K, HT 73, HT 75, HT 101, HT 130, HT 131, HT 135, HT 250, HT 56 C, HT-KM, HTA 135, HTA 150.0, HTA 160.0, HTE 60 Blowers (BG series): BG 45, BG 46, BG 50, BG 55, BG 56, BG 65, BG 66, BG 85, BG 86, BG 86 C Blower Vacs (BR series): BR 45 C, BR 200 Earth Augers / Drills (BT series): BT 45, BT 120 C, BT 121, BT 121 Z Cultivators (FC series): FC 55 DZ, FC 56, FC 70, FC 70 C KombiSystem Power Units & Attachments (FH / FR / FT series): FH 75, FH-KM, FH-KM 135°, FR 350, FR 410 C, FR 450, FR 460 TC, FR 480, FR 480 C, FT 250 Long-Reach Hedge Trimmer Attachments (HEL series): HEL 700, HEL 700 K Cultivator / Edger Attachments (KA series): KA 120, KA 120 R, KA 250 Attachment KombiSystem Powerheads (KM / KMA series): KM 55, KM 55 C, KM 55 R, KM 55 RC, KM 56 C, KM 56 RC, KMA 135 R Battery Multi-Tool Powerheads (MA series): MA 339.0, MA 339.0 C, MA 339.1 C, MA 443.1, MA 443.1 C MultiSystem Power Units (MM series): MM 55, MM 55 C MultiSystem, MM 55-Z MultiSystem, MM 56 MultiSystem Compact Chainsaws (MS series): MS 162, MS 162 C, MS 172, MS 172 C, MS 192 C, MS 192 T, MS 192 TC, MS 193 C, MS 193 T, MS 193 TC, MS 194 T, MS 194 TC Battery Brushcutters (MSA series): MSA 120 C, MSA 120 C-BQ Powerhead, MSA 140 C, MSA 140 C-BQ Powerhead, MSA 160 C, MSA 200 C, MSA 220 C Battery Brushcutters (RMA series): RMA 410 C Sweepers (SH series): SH 55, SH 56, SH 85, SH 86 Pole Saws & Edgers (SP series): SP 90, SP 90 T, SP 200, SP 400, SP 450, SP 451, SP 481 Earth Augers (SR series): SR 200, SR 200-D, SR 200-Z Cut-Off Saws (TS series): TS 410, TS 420, TS 440, TS 480i, TS 500i, TS 700, TS 800 Also Known As This part is also referred to as a flanged screw, recoil starter screw, rewind starter screw, self-tapping screw, fixing screw, retaining screw or 5mm x 20mm machine screw. In STIHL parts diagrams it is designated IS-D5x20. For correct identification when ordering, always use STIHL part number 0000 951 1100 — also formatted as 0000-951-1100 and 00009511100. Often Replaced Alongside This screw is most commonly needed when servicing rewind starter assemblies, fan housings or covers. It's worth checking these related items at the same time: STIHL Spare Parts — find the specific cover, housing or starter component for your machine STIHL Parts Finder — confirm exact part compatibility for your model before ordering Sharpening & Maintenance Tools — keep your servicing kit stocked alongside routine fastener replacement As this fastener covers such a wide range of machines, workshops and fleet operators servicing multiple STIHL tools may wish to order several at once to keep on hand for routine cover and housing repairs. Explore More STIHL Spare Parts STIHL Parts Finder STIHL Machinery FAQs What is the STIHL Screw IS-D5x20 used for? This flanged fastening screw secures covers, guards, housings and rewind starter assemblies on a wide range of STIHL handheld power tools and garden machinery. What is the part number for this screw? The genuine STIHL part number is 0000 951 1100, also formatted as 0000-951-1100 and 00009511100. What size is the IS-D5x20 screw? 5mm diameter x 20mm length (approximately 0.2" x 0.8"), with a flanged head and self-tapping thread. Which STIHL machines does this screw fit? This screw fits over 100 STIHL models across brushcutters, hedge trimmers, pole pruners, blowers, earth augers, multi-tool powerheads and cut-off saws. See the Fits Models list above to confirm compatibility with your machine. Is this a flanged screw? Yes. The integrated flange spreads clamping load over a wider bearing surface, helping prevent the screw head sinking into or cracking the surrounding plastic housing during repeated servicing. Can I use a generic M5 screw instead? A generic M5 screw may look similar but can differ in thread pitch, flange diameter and length. Genuine STIHL fasteners are matched to the original housing thread to avoid cross-threading or stripping plastic components. Should I order more than one? Since this fastener is used across so many STIHL models and is commonly lost or stripped during servicing, workshops and fleet operators often keep a small stock on hand. Order the quantity needed for your repair. Show more